76641147 has 20 divisors (see below), whose sum is σ = 124898136. Its totient is φ = 46448640.

The previous prime is 76641137. The next prime is 76641181. The reversal of 76641147 is 74114667.

76641147 is a `hidden beast` number, since 7 + 6 + 641 + 1 + 4 + 7 = 666.

It is not a de Polignac number, because 76641147 - 2⁸ = 76640891 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (76641137) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 42118 + ... + 43899.

Almost surely, 2^76641147 is an apocalyptic number.

76641147 is a deficient number, since it is larger than the sum of its proper divisors (48256989).

76641147 is a wasteful number, since it uses less digits than its factorization.

76641147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86040 (or 86031 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 76641147 is about 8754.4929607602. The cubic root of 76641147 is about 424.7701585377.

The spelling of 76641147 in words is "seventy-six million, six hundred forty-one thousand, one hundred forty-seven".