74912413 has 2 divisors, whose sum is σ = 74912414. Its totient is φ = 74912412.

The previous prime is 74912401. The next prime is 74912417. The reversal of 74912413 is 31421947.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73908409 + 1004004 = 8597^2 + 1002^2 .

It is an emirp because it is prime and its reverse (31421947) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74912413 - 2¹⁷ = 74781341 is a prime.

It is a super-2 number, since 2×74912413² = 11223739242965138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74912417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37456206 + 37456207.

It is an arithmetic number, because the mean of its divisors is an integer number (37456207).

Almost surely, 2^74912413 is an apocalyptic number.

It is an amenable number.

74912413 is a deficient number, since it is larger than the sum of its proper divisors (1).

74912413 is an equidigital number, since it uses as much as digits as its factorization.

74912413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 31.

The square root of 74912413 is about 8655.1957228014. The cubic root of 74912413 is about 421.5521048447.

The spelling of 74912413 in words is "seventy-four million, nine hundred twelve thousand, four hundred thirteen".