74470393 has 2 divisors, whose sum is σ = 74470394. Its totient is φ = 74470392.

The previous prime is 74470373. The next prime is 74470399. The reversal of 74470393 is 39307447.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72046144 + 2424249 = 8488^2 + 1557^2 .

It is a cyclic number.

It is not a de Polignac number, because 74470393 - 2⁹ = 74469881 is a prime.

It is not a weakly prime, because it can be changed into another prime (74470399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37235196 + 37235197.

It is an arithmetic number, because the mean of its divisors is an integer number (37235197).

Almost surely, 2^74470393 is an apocalyptic number.

It is an amenable number.

74470393 is a deficient number, since it is larger than the sum of its proper divisors (1).

74470393 is an equidigital number, since it uses as much as digits as its factorization.

74470393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63504, while the sum is 37.

The square root of 74470393 is about 8629.6229929239. The cubic root of 74470393 is about 420.7213473050.

The spelling of 74470393 in words is "seventy-four million, four hundred seventy thousand, three hundred ninety-three".