74262989 has 2 divisors, whose sum is σ = 74262990. Its totient is φ = 74262988.

The previous prime is 74262967. The next prime is 74263027. The reversal of 74262989 is 98926247.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39062500 + 35200489 = 6250^2 + 5933^2 .

It is a cyclic number.

It is not a de Polignac number, because 74262989 - 2²⁰ = 73214413 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74262289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37131494 + 37131495.

It is an arithmetic number, because the mean of its divisors is an integer number (37131495).

Almost surely, 2^74262989 is an apocalyptic number.

It is an amenable number.

74262989 is a deficient number, since it is larger than the sum of its proper divisors (1).

74262989 is an equidigital number, since it uses as much as digits as its factorization.

74262989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 435456, while the sum is 47.

The square root of 74262989 is about 8617.5976350721. The cubic root of 74262989 is about 420.3304070507.

The spelling of 74262989 in words is "seventy-four million, two hundred sixty-two thousand, nine hundred eighty-nine".