74692987 has 2 divisors, whose sum is σ = 74692988. Its totient is φ = 74692986.

The previous prime is 74692979. The next prime is 74692991. The reversal of 74692987 is 78929647.

It is a strong prime.

It is an emirp because it is prime and its reverse (78929647) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74692987 - 2³ = 74692979 is a prime.

It is not a weakly prime, because it can be changed into another prime (74692927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37346493 + 37346494.

It is an arithmetic number, because the mean of its divisors is an integer number (37346494).

Almost surely, 2^74692987 is an apocalyptic number.

74692987 is a deficient number, since it is larger than the sum of its proper divisors (1).

74692987 is an equidigital number, since it uses as much as digits as its factorization.

74692987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1524096, while the sum is 52.

The square root of 74692987 is about 8642.5104570374. The cubic root of 74692987 is about 421.1401128079.

The spelling of 74692987 in words is "seventy-four million, six hundred ninety-two thousand, nine hundred eighty-seven".