76878669 has 8 divisors (see below), whose sum is σ = 117148480. Its totient is φ = 43930656.

The previous prime is 76878647. The next prime is 76878671. The reversal of 76878669 is 96687867.

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

It is not a de Polignac number, because 76878669 - 2¹² = 76874573 is a prime.

It is a super-2 number, since 2×76878669² = 11820659494423122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76878679) 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, 1830424 + ... + 1830465.

It is an arithmetic number, because the mean of its divisors is an integer number (14643560).

Almost surely, 2^76878669 is an apocalyptic number.

It is an amenable number.

76878669 is a deficient number, since it is larger than the sum of its proper divisors (40269811).

76878669 is a wasteful number, since it uses less digits than its factorization.

76878669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3660899.

The product of its digits is 6096384, while the sum is 57.

The square root of 76878669 is about 8768.0481864552. The cubic root of 76878669 is about 425.2085140601.

The spelling of 76878669 in words is "seventy-six million, eight hundred seventy-eight thousand, six hundred sixty-nine".