74712273 has 12 divisors (see below), whose sum is σ = 100442160. Its totient is φ = 49397136.

The previous prime is 74712269. The next prime is 74712277. The reversal of 74712273 is 37221747.

It is an interprime number because it is at equal distance from previous prime (74712269) and next prime (74712277).

It is not a de Polignac number, because 74712273 - 2² = 74712269 is a prime.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (74712277) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 200115 + ... + 200487.

It is an arithmetic number, because the mean of its divisors is an integer number (8370180).

Almost surely, 2^74712273 is an apocalyptic number.

It is an amenable number.

74712273 is a deficient number, since it is larger than the sum of its proper divisors (25729887).

74712273 is an equidigital number, since it uses as much as digits as its factorization.

74712273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928 (or 555 counting only the distinct ones).

The product of its digits is 16464, while the sum is 33.

The square root of 74712273 is about 8643.6261487873. The cubic root of 74712273 is about 421.1763563232.

The spelling of 74712273 in words is "seventy-four million, seven hundred twelve thousand, two hundred seventy-three".