74661383 has 4 divisors (see below), whose sum is σ = 75775800. Its totient is φ = 73546968.

The previous prime is 74661371. The next prime is 74661401. The reversal of 74661383 is 38316647.

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 74661383 - 2²⁰ = 73612807 is a prime.

It is a super-2 number, since 2×74661383² = 11148644222945378, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74661883) 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, 557108 + ... + 557241.

It is an arithmetic number, because the mean of its divisors is an integer number (18943950).

Almost surely, 2^74661383 is an apocalyptic number.

74661383 is a deficient number, since it is larger than the sum of its proper divisors (1114417).

74661383 is a wasteful number, since it uses less digits than its factorization.

74661383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1114416.

The product of its digits is 72576, while the sum is 38.

The square root of 74661383 is about 8640.6818596683. The cubic root of 74661383 is about 421.0807070087.

The spelling of 74661383 in words is "seventy-four million, six hundred sixty-one thousand, three hundred eighty-three".