74401237 has 2 divisors, whose sum is σ = 74401238. Its totient is φ = 74401236.

The previous prime is 74401199. The next prime is 74401247. The reversal of 74401237 is 73210447.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39425841 + 34975396 = 6279^2 + 5914^2 .

It is an emirp because it is prime and its reverse (73210447) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74401237 - 2⁷ = 74401109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74401247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37200618 + 37200619.

It is an arithmetic number, because the mean of its divisors is an integer number (37200619).

Almost surely, 2^74401237 is an apocalyptic number.

It is an amenable number.

74401237 is a deficient number, since it is larger than the sum of its proper divisors (1).

74401237 is an equidigital number, since it uses as much as digits as its factorization.

74401237 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 74401237 is about 8625.6151664678. The cubic root of 74401237 is about 420.5910744304.

The spelling of 74401237 in words is "seventy-four million, four hundred one thousand, two hundred thirty-seven".