78692963 has 2 divisors, whose sum is σ = 78692964. Its totient is φ = 78692962.

The previous prime is 78692947. The next prime is 78693001. The reversal of 78692963 is 36929687.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 78692963 - 2⁴ = 78692947 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (78692903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39346481 + 39346482.

It is an arithmetic number, because the mean of its divisors is an integer number (39346482).

Almost surely, 2^78692963 is an apocalyptic number.

78692963 is a deficient number, since it is larger than the sum of its proper divisors (1).

78692963 is an equidigital number, since it uses as much as digits as its factorization.

78692963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 979776, while the sum is 50.

The square root of 78692963 is about 8870.9054216579. The cubic root of 78692963 is about 428.5274362728.

The spelling of 78692963 in words is "seventy-eight million, six hundred ninety-two thousand, nine hundred sixty-three".