7264996421 has 4 divisors (see below), whose sum is σ = 7265693100. Its totient is φ = 7264299744.

The previous prime is 7264996411. The next prime is 7264996423. The reversal of 7264996421 is 1246994627.

7264996421 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3958171396 + 3306825025 = 62914^2 + 57505^2 .

It is a cyclic number.

It is not a de Polignac number, because 7264996421 - 2²² = 7260802117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 7264996421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7264996423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 332456 + ... + 353633.

It is an arithmetic number, because the mean of its divisors is an integer number (1816423275).

Almost surely, 2^7264996421 is an apocalyptic number.

It is an amenable number.

7264996421 is a deficient number, since it is larger than the sum of its proper divisors (696679).

7264996421 is a wasteful number, since it uses less digits than its factorization.

7264996421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696678.

The product of its digits is 1306368, while the sum is 50.

The square root of 7264996421 is about 85234.9483545335. The cubic root of 7264996421 is about 1936.7718678364.

The spelling of 7264996421 in words is "seven billion, two hundred sixty-four million, nine hundred ninety-six thousand, four hundred twenty-one".