74904293 has 2 divisors, whose sum is σ = 74904294. Its totient is φ = 74904292.

The previous prime is 74904287. The next prime is 74904311. The reversal of 74904293 is 39240947.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68442529 + 6461764 = 8273^2 + 2542^2 .

It is a cyclic number.

It is not a de Polignac number, because 74904293 - 2¹² = 74900197 is a prime.

It is a super-2 number, since 2×74904293² = 11221306219659698, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74904223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37452146 + 37452147.

It is an arithmetic number, because the mean of its divisors is an integer number (37452147).

Almost surely, 2^74904293 is an apocalyptic number.

It is an amenable number.

74904293 is a deficient number, since it is larger than the sum of its proper divisors (1).

74904293 is an equidigital number, since it uses as much as digits as its factorization.

74904293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 74904293 is about 8654.7266276873. The cubic root of 74904293 is about 421.5368731600.

The spelling of 74904293 in words is "seventy-four million, nine hundred four thousand, two hundred ninety-three".