74286947 has 4 divisors (see below), whose sum is σ = 84899376. Its totient is φ = 63674520.

The previous prime is 74286937. The next prime is 74286977. The reversal of 74286947 is 74968247.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74968247 = 23 ⋅3259489.

It is not a de Polignac number, because 74286947 - 2²⁴ = 57509731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74286907) 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, 5306204 + ... + 5306217.

It is an arithmetic number, because the mean of its divisors is an integer number (21224844).

Almost surely, 2^74286947 is an apocalyptic number.

74286947 is a deficient number, since it is larger than the sum of its proper divisors (10612429).

74286947 is a wasteful number, since it uses less digits than its factorization.

74286947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10612428.

The product of its digits is 677376, while the sum is 47.

The square root of 74286947 is about 8618.9875855578. The cubic root of 74286947 is about 420.3756031540.

The spelling of 74286947 in words is "seventy-four million, two hundred eighty-six thousand, nine hundred forty-seven".