76428171 has 16 divisors (see below), whose sum is σ = 113625120. Its totient is φ = 50772960.

The previous prime is 76428161. The next prime is 76428211. The reversal of 76428171 is 17182467.

76428171 is a `hidden beast` number, since 7 + 642 + 8 + 1 + 7 + 1 = 666.

It is not a de Polignac number, because 76428171 - 2²³ = 68039563 is a prime.

It is not an unprimeable number, because it can be changed into a prime (76428161) 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 15 ways as a sum of consecutive naturals, for example, 3081 + ... + 12741.

It is an arithmetic number, because the mean of its divisors is an integer number (7101570).

Almost surely, 2^76428171 is an apocalyptic number.

76428171 is a deficient number, since it is larger than the sum of its proper divisors (37196949).

76428171 is a wasteful number, since it uses less digits than its factorization.

76428171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9963 (or 9957 counting only the distinct ones).

The product of its digits is 18816, while the sum is 36.

The square root of 76428171 is about 8742.3206873232. The cubic root of 76428171 is about 424.3763327659.

The spelling of 76428171 in words is "seventy-six million, four hundred twenty-eight thousand, one hundred seventy-one".