74816231 has 8 divisors (see below), whose sum is σ = 87117984. Its totient is φ = 62917920.

The previous prime is 74816191. The next prime is 74816233. The reversal of 74816231 is 13261847.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74816231 is a prime.

It is a super-2 number, since 2×74816231² = 11194936842090722, 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 (74816233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100460 + ... + 101201.

It is an arithmetic number, because the mean of its divisors is an integer number (10889748).

Almost surely, 2^74816231 is an apocalyptic number.

74816231 is a deficient number, since it is larger than the sum of its proper divisors (12301753).

74816231 is a wasteful number, since it uses less digits than its factorization.

74816231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201721.

The product of its digits is 8064, while the sum is 32.

The square root of 74816231 is about 8649.6376224672. The cubic root of 74816231 is about 421.3716136645.

The spelling of 74816231 in words is "seventy-four million, eight hundred sixteen thousand, two hundred thirty-one".