74989963 has 2 divisors, whose sum is σ = 74989964. Its totient is φ = 74989962.

The previous prime is 74989927. The next prime is 74989973. The reversal of 74989963 is 36998947.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74989963 is a prime.

It is not a weakly prime, because it can be changed into another prime (74989973) 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, 37494981 + 37494982.

It is an arithmetic number, because the mean of its divisors is an integer number (37494982).

Almost surely, 2^74989963 is an apocalyptic number.

74989963 is a deficient number, since it is larger than the sum of its proper divisors (1).

74989963 is an equidigital number, since it uses as much as digits as its factorization.

74989963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2939328, while the sum is 55.

The square root of 74989963 is about 8659.6745319902. The cubic root of 74989963 is about 421.6975195146.

The spelling of 74989963 in words is "seventy-four million, nine hundred eighty-nine thousand, nine hundred sixty-three".