7904985769 has 8 divisors (see below), whose sum is σ = 8008732160. Its totient is φ = 7801331616.

The previous prime is 7904985743. The next prime is 7904985779. The reversal of 7904985769 is 9675894097.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7904985769 - 2²⁷ = 7770768041 is a prime.

It is a super-2 number, since 2×7904985769² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7904985769.

It is not an unprimeable number, because it can be changed into a prime (7904985779) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158797 + ... + 202549.

It is an arithmetic number, because the mean of its divisors is an integer number (1001091520).

Almost surely, 2^7904985769 is an apocalyptic number.

7904985769 is a gapful number since it is divisible by the number (79) formed by its first and last digit.

It is an amenable number.

7904985769 is a deficient number, since it is larger than the sum of its proper divisors (103746391).

7904985769 is a wasteful number, since it uses less digits than its factorization.

7904985769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46119.

The product of its (nonzero) digits is 34292160, while the sum is 64.

The square root of 7904985769 is about 88909.9868912374. The cubic root of 7904985769 is about 1992.0505927411.

The spelling of 7904985769 in words is "seven billion, nine hundred four million, nine hundred eighty-five thousand, seven hundred sixty-nine".