76420787 has 2 divisors, whose sum is σ = 76420788. Its totient is φ = 76420786.

The previous prime is 76420781. The next prime is 76420807. The reversal of 76420787 is 78702467.

It is a weak prime.

It is an emirp because it is prime and its reverse (78702467) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 76420787 - 2⁶ = 76420723 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (76420781) 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, 38210393 + 38210394.

It is an arithmetic number, because the mean of its divisors is an integer number (38210394).

Almost surely, 2^76420787 is an apocalyptic number.

76420787 is a deficient number, since it is larger than the sum of its proper divisors (1).

76420787 is an equidigital number, since it uses as much as digits as its factorization.

76420787 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 131712, while the sum is 41.

The square root of 76420787 is about 8741.8983636279. The cubic root of 76420787 is about 424.3626654854.

The spelling of 76420787 in words is "seventy-six million, four hundred twenty thousand, seven hundred eighty-seven".