74892747 has 8 divisors (see below), whose sum is σ = 100226560. Its totient is φ = 49743720.

The previous prime is 74892743. The next prime is 74892749. The reversal of 74892747 is 74729847.

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

It is not a de Polignac number, because 74892747 - 2² = 74892743 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74892696 and 74892705.

It is not an unprimeable number, because it can be changed into a prime (74892743) 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, 45247 + ... + 46872.

It is an arithmetic number, because the mean of its divisors is an integer number (12528320).

Almost surely, 2^74892747 is an apocalyptic number.

74892747 is a deficient number, since it is larger than the sum of its proper divisors (25333813).

74892747 is a wasteful number, since it uses less digits than its factorization.

74892747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92393.

The product of its digits is 790272, while the sum is 48.

The square root of 74892747 is about 8654.0595676249. The cubic root of 74892747 is about 421.5152130092.

The spelling of 74892747 in words is "seventy-four million, eight hundred ninety-two thousand, seven hundred forty-seven".