7324716421 has 4 divisors (see below), whose sum is σ = 7990599744. Its totient is φ = 6658833100.

The previous prime is 7324716409. The next prime is 7324716463. The reversal of 7324716421 is 1246174237.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7324716421 - 2⁵ = 7324716389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7324714421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 332941645 + ... + 332941666.

It is an arithmetic number, because the mean of its divisors is an integer number (1997649936).

Almost surely, 2^7324716421 is an apocalyptic number.

It is an amenable number.

7324716421 is a deficient number, since it is larger than the sum of its proper divisors (665883323).

7324716421 is a wasteful number, since it uses less digits than its factorization.

7324716421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665883322.

The product of its digits is 56448, while the sum is 37.

The square root of 7324716421 is about 85584.5571408768. The cubic root of 7324716421 is about 1942.0643011310.

The spelling of 7324716421 in words is "seven billion, three hundred twenty-four million, seven hundred sixteen thousand, four hundred twenty-one".