74084731 has 4 divisors (see below), whose sum is σ = 84668272. Its totient is φ = 63501192.

The previous prime is 74084729. The next prime is 74084741. The reversal of 74084731 is 13748047.

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 74084731 - 2¹ = 74084729 is a prime.

It is a super-2 number, since 2×74084731² = 10977094734684722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74084701) 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, 5291760 + ... + 5291773.

It is an arithmetic number, because the mean of its divisors is an integer number (21167068).

Almost surely, 2^74084731 is an apocalyptic number.

74084731 is a deficient number, since it is larger than the sum of its proper divisors (10583541).

74084731 is a wasteful number, since it uses less digits than its factorization.

74084731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10583540.

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 74084731 is about 8607.2487474221. The cubic root of 74084731 is about 419.9938226605.

The spelling of 74084731 in words is "seventy-four million, eighty-four thousand, seven hundred thirty-one".