74748901 has 2 divisors, whose sum is σ = 74748902. Its totient is φ = 74748900.

The previous prime is 74748899. The next prime is 74748911. The reversal of 74748901 is 10984747.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47196900 + 27552001 = 6870^2 + 5249^2 .

It is a cyclic number.

It is not a de Polignac number, because 74748901 - 2¹ = 74748899 is a prime.

Together with 74748899, 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 (74748911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37374450 + 37374451.

It is an arithmetic number, because the mean of its divisors is an integer number (37374451).

Almost surely, 2^74748901 is an apocalyptic number.

It is an amenable number.

74748901 is a deficient number, since it is larger than the sum of its proper divisors (1).

74748901 is an equidigital number, since it uses as much as digits as its factorization.

74748901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 74748901 is about 8645.7446758507. The cubic root of 74748901 is about 421.2451728939.

The spelling of 74748901 in words is "seventy-four million, seven hundred forty-eight thousand, nine hundred one".