74497273 has 2 divisors, whose sum is σ = 74497274. Its totient is φ = 74497272.

The previous prime is 74497229. The next prime is 74497279. The reversal of 74497273 is 37279447.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72386064 + 2111209 = 8508^2 + 1453^2 .

It is a cyclic number.

It is not a de Polignac number, because 74497273 - 2⁹ = 74496761 is a prime.

It is not a weakly prime, because it can be changed into another prime (74497279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37248636 + 37248637.

It is an arithmetic number, because the mean of its divisors is an integer number (37248637).

Almost surely, 2^74497273 is an apocalyptic number.

It is an amenable number.

74497273 is a deficient number, since it is larger than the sum of its proper divisors (1).

74497273 is an equidigital number, since it uses as much as digits as its factorization.

74497273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 296352, while the sum is 43.

The square root of 74497273 is about 8631.1802785019. The cubic root of 74497273 is about 420.7719608396.

The spelling of 74497273 in words is "seventy-four million, four hundred ninety-seven thousand, two hundred seventy-three".