76891851 has 12 divisors (see below), whose sum is σ = 113775480. Its totient is φ = 50010720.

The previous prime is 76891831. The next prime is 76891889. The reversal of 76891851 is 15819867.

It is not a de Polignac number, because 76891851 - 2⁵ = 76891819 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 76891797 and 76891806.

It is not an unprimeable number, because it can be changed into a prime (76891831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 103821 + ... + 104558.

It is an arithmetic number, because the mean of its divisors is an integer number (9481290).

Almost surely, 2^76891851 is an apocalyptic number.

76891851 is a deficient number, since it is larger than the sum of its proper divisors (36883629).

76891851 is a wasteful number, since it uses less digits than its factorization.

76891851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208426 (or 208423 counting only the distinct ones).

The product of its digits is 120960, while the sum is 45.

The square root of 76891851 is about 8768.7998608704. The cubic root of 76891851 is about 425.2328154621.

The spelling of 76891851 in words is "seventy-six million, eight hundred ninety-one thousand, eight hundred fifty-one".