74492621 has 4 divisors (see below), whose sum is σ = 85134432. Its totient is φ = 63850812.

The previous prime is 74492609. The next prime is 74492669. The reversal of 74492621 is 12629447.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 74492621 - 2⁶ = 74492557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74494621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5320895 + ... + 5320908.

It is an arithmetic number, because the mean of its divisors is an integer number (21283608).

Almost surely, 2^74492621 is an apocalyptic number.

It is an amenable number.

74492621 is a deficient number, since it is larger than the sum of its proper divisors (10641811).

74492621 is a wasteful number, since it uses less digits than its factorization.

74492621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10641810.

The product of its digits is 24192, while the sum is 35.

The square root of 74492621 is about 8630.9107862380. The cubic root of 74492621 is about 420.7632022554.

The spelling of 74492621 in words is "seventy-four million, four hundred ninety-two thousand, six hundred twenty-one".