76506971 has 2 divisors, whose sum is σ = 76506972. Its totient is φ = 76506970.

The previous prime is 76506967. The next prime is 76507003. The reversal of 76506971 is 17960567.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 76506971 - 2² = 76506967 is a prime.

It is a super-2 number, since 2×76506971² = 11706633223189682, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (76506071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38253485 + 38253486.

It is an arithmetic number, because the mean of its divisors is an integer number (38253486).

Almost surely, 2^76506971 is an apocalyptic number.

76506971 is a deficient number, since it is larger than the sum of its proper divisors (1).

76506971 is an equidigital number, since it uses as much as digits as its factorization.

76506971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 79380, while the sum is 41.

The square root of 76506971 is about 8746.8263387357. The cubic root of 76506971 is about 424.5221313996.

It can be divided in two parts, 76506 and 971, that added together give a palindrome (77477).

The spelling of 76506971 in words is "seventy-six million, five hundred six thousand, nine hundred seventy-one".