74325491 has 4 divisors (see below), whose sum is σ = 75266400. Its totient is φ = 73384584.

The previous prime is 74325487. The next prime is 74325499. The reversal of 74325491 is 19452347.

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 74325491 - 2² = 74325487 is a prime.

It is a super-2 number, since 2×74325491² = 11048557224782162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74325499) 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, 470336 + ... + 470493.

It is an arithmetic number, because the mean of its divisors is an integer number (18816600).

Almost surely, 2^74325491 is an apocalyptic number.

74325491 is a deficient number, since it is larger than the sum of its proper divisors (940909).

74325491 is an equidigital number, since it uses as much as digits as its factorization.

74325491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 940908.

The product of its digits is 30240, while the sum is 35.

The square root of 74325491 is about 8621.2232890698. The cubic root of 74325491 is about 420.4482949542.

The spelling of 74325491 in words is "seventy-four million, three hundred twenty-five thousand, four hundred ninety-one".