74636413 has 2 divisors, whose sum is σ = 74636414. Its totient is φ = 74636412.

The previous prime is 74636411. The next prime is 74636447. The reversal of 74636413 is 31463647.

It is an a-pointer prime, because the next prime (74636447) can be obtained adding 74636413 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58339044 + 16297369 = 7638^2 + 4037^2 .

It is a cyclic number.

It is not a de Polignac number, because 74636413 - 2¹ = 74636411 is a prime.

Together with 74636411, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74636411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37318206 + 37318207.

It is an arithmetic number, because the mean of its divisors is an integer number (37318207).

Almost surely, 2^74636413 is an apocalyptic number.

It is an amenable number.

74636413 is a deficient number, since it is larger than the sum of its proper divisors (1).

74636413 is an equidigital number, since it uses as much as digits as its factorization.

74636413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 34.

The square root of 74636413 is about 8639.2368297206. The cubic root of 74636413 is about 421.0337592328.

The spelling of 74636413 in words is "seventy-four million, six hundred thirty-six thousand, four hundred thirteen".