787696865 has 16 divisors (see below), whose sum is σ = 964208448. Its totient is φ = 617537856.

The previous prime is 787696859. The next prime is 787696891. The reversal of 787696865 is 568696787.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 787696865 - 2⁴ = 787696849 is a prime.

It is a super-2 number, since 2×787696865² = 1240932702261656450, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 787696798 and 787696807.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 377114 + ... + 379196.

It is an arithmetic number, because the mean of its divisors is an integer number (60263028).

Almost surely, 2^787696865 is an apocalyptic number.

It is an amenable number.

787696865 is a deficient number, since it is larger than the sum of its proper divisors (176511583).

787696865 is a wasteful number, since it uses less digits than its factorization.

787696865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3568.

The product of its digits is 30481920, while the sum is 62.

The square root of 787696865 is about 28065.9378072424. The cubic root of 787696865 is about 923.5343196850.

The spelling of 787696865 in words is "seven hundred eighty-seven million, six hundred ninety-six thousand, eight hundred sixty-five".