74266993 has 2 divisors, whose sum is σ = 74266994. Its totient is φ = 74266992.

The previous prime is 74266961. The next prime is 74267027. The reversal of 74266993 is 39966247.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55845729 + 18421264 = 7473^2 + 4292^2 .

It is a cyclic number.

It is not a de Polignac number, because 74266993 - 2⁵ = 74266961 is a prime.

It is not a weakly prime, because it can be changed into another prime (74260993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37133496 + 37133497.

It is an arithmetic number, because the mean of its divisors is an integer number (37133497).

Almost surely, 2^74266993 is an apocalyptic number.

It is an amenable number.

74266993 is a deficient number, since it is larger than the sum of its proper divisors (1).

74266993 is an equidigital number, since it uses as much as digits as its factorization.

74266993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 489888, while the sum is 46.

The square root of 74266993 is about 8617.8299472663. The cubic root of 74266993 is about 420.3379611622.

The spelling of 74266993 in words is "seventy-four million, two hundred sixty-six thousand, nine hundred ninety-three".