74670691 has 2 divisors, whose sum is σ = 74670692. Its totient is φ = 74670690.

The previous prime is 74670677. The next prime is 74670707. The reversal of 74670691 is 19607647.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 74670691 - 2⁹ = 74670179 is a prime.

It is not a weakly prime, because it can be changed into another prime (74670641) 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, 37335345 + 37335346.

It is an arithmetic number, because the mean of its divisors is an integer number (37335346).

Almost surely, 2^74670691 is an apocalyptic number.

74670691 is a deficient number, since it is larger than the sum of its proper divisors (1).

74670691 is an equidigital number, since it uses as much as digits as its factorization.

74670691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 74670691 is about 8641.2204577826. The cubic root of 74670691 is about 421.0982049270.

The spelling of 74670691 in words is "seventy-four million, six hundred seventy thousand, six hundred ninety-one".