7229402791 has 4 divisors (see below), whose sum is σ = 7785510712. Its totient is φ = 6673294872.

The previous prime is 7229402783. The next prime is 7229402797. The reversal of 7229402791 is 1972049227.

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

It is a cyclic number.

It is not a de Polignac number, because 7229402791 - 2³ = 7229402783 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 (7229402797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 278053941 + ... + 278053966.

It is an arithmetic number, because the mean of its divisors is an integer number (1946377678).

Almost surely, 2^7229402791 is an apocalyptic number.

7229402791 is a deficient number, since it is larger than the sum of its proper divisors (556107921).

7229402791 is a wasteful number, since it uses less digits than its factorization.

7229402791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556107920.

The product of its (nonzero) digits is 127008, while the sum is 43.

The square root of 7229402791 is about 85025.8948262234. The cubic root of 7229402791 is about 1933.6037254167.

The spelling of 7229402791 in words is "seven billion, two hundred twenty-nine million, four hundred two thousand, seven hundred ninety-one".