76785969 has 8 divisors (see below), whose sum is σ = 110256832. Its totient is φ = 47252880.

The previous prime is 76785901. The next prime is 76785971. The reversal of 76785969 is 96958767.

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

It is a de Polignac number, because none of the positive numbers 2^k-76785969 is a prime.

It is a super-2 number, since 2×76785969² = 11792170070537922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (76785979) 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, 984397 + ... + 984474.

It is an arithmetic number, because the mean of its divisors is an integer number (13782104).

Almost surely, 2^76785969 is an apocalyptic number.

It is an amenable number.

76785969 is a deficient number, since it is larger than the sum of its proper divisors (33470863).

76785969 is a wasteful number, since it uses less digits than its factorization.

76785969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1968887.

The product of its digits is 5715360, while the sum is 57.

The square root of 76785969 is about 8762.7603527656. The cubic root of 76785969 is about 425.0375403979.

It can be divided in two parts, 767 and 85969, that added together give a triangular number (86736 = T₄₁₆).

The spelling of 76785969 in words is "seventy-six million, seven hundred eighty-five thousand, nine hundred sixty-nine".