76406987 has 2 divisors, whose sum is σ = 76406988. Its totient is φ = 76406986.

The previous prime is 76406927. The next prime is 76407011. The reversal of 76406987 is 78960467.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 76406987 - 2⁸ = 76406731 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (76406927) 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 as a sum of consecutive naturals, namely, 38203493 + 38203494.

It is an arithmetic number, because the mean of its divisors is an integer number (38203494).

Almost surely, 2^76406987 is an apocalyptic number.

76406987 is a deficient number, since it is larger than the sum of its proper divisors (1).

76406987 is an equidigital number, since it uses as much as digits as its factorization.

76406987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 508032, while the sum is 47.

The square root of 76406987 is about 8741.1090257472. The cubic root of 76406987 is about 424.3371202659.

The spelling of 76406987 in words is "seventy-six million, four hundred six thousand, nine hundred eighty-seven".