74790491 has 4 divisors (see below), whose sum is σ = 74816712. Its totient is φ = 74764272.

The previous prime is 74790481. The next prime is 74790493. The reversal of 74790491 is 19409747.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 74790491 - 2¹⁰ = 74789467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74790493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8225 + ... + 14738.

It is an arithmetic number, because the mean of its divisors is an integer number (18704178).

Almost surely, 2^74790491 is an apocalyptic number.

74790491 is a deficient number, since it is larger than the sum of its proper divisors (26221).

74790491 is a wasteful number, since it uses less digits than its factorization.

74790491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26220.

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 74790491 is about 8648.1495708620. The cubic root of 74790491 is about 421.3232848047.

The spelling of 74790491 in words is "seventy-four million, seven hundred ninety thousand, four hundred ninety-one".