7902920113 has 4 divisors (see below), whose sum is σ = 8621367408. Its totient is φ = 7184472820.

The previous prime is 7902920111. The next prime is 7902920149. The reversal of 7902920113 is 3110292097.

It is a happy number.

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 7902920113 - 2¹ = 7902920111 is a prime.

It is a super-2 number, since 2×7902920113² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7902920111) 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, 359223631 + ... + 359223652.

It is an arithmetic number, because the mean of its divisors is an integer number (2155341852).

Almost surely, 2^7902920113 is an apocalyptic number.

It is an amenable number.

7902920113 is a deficient number, since it is larger than the sum of its proper divisors (718447295).

7902920113 is a wasteful number, since it uses less digits than its factorization.

7902920113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718447294.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 7902920113 is about 88898.3695744753. The cubic root of 7902920113 is about 1991.8770630282.

The spelling of 7902920113 in words is "seven billion, nine hundred two million, nine hundred twenty thousand, one hundred thirteen".