7904029690 has 16 divisors (see below), whose sum is σ = 14280147720. Its totient is φ = 3149857600.

The previous prime is 7904029687. The next prime is 7904029717. The reversal of 7904029690 is 969204097.

It can be written as a sum of positive squares in 4 ways, for example, as 3289137201 + 4614892489 = 57351^2 + 67933^2 .

It is a super-2 number, since 2×7904029690² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7904029690.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1466461 + ... + 1471840.

Almost surely, 2^7904029690 is an apocalyptic number.

7904029690 is a deficient number, since it is larger than the sum of its proper divisors (6376118030).

7904029690 is a wasteful number, since it uses less digits than its factorization.

7904029690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2938577.

The product of its (nonzero) digits is 244944, while the sum is 46.

The square root of 7904029690 is about 88904.6100604462. The cubic root of 7904029690 is about 1991.9702791018.

The spelling of 7904029690 in words is "seven billion, nine hundred four million, twenty-nine thousand, six hundred ninety".