74303731 has 8 divisors (see below), whose sum is σ = 78103584. Its totient is φ = 70551360.

The previous prime is 74303729. The next prime is 74303743. The reversal of 74303731 is 13730347.

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

It is a cyclic number.

It is not a de Polignac number, because 74303731 - 2¹ = 74303729 is a prime.

It is a super-2 number, since 2×74303731² = 11042088881040722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 74303731.

It is not an unprimeable number, because it can be changed into a prime (74303791) 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, 8640 + ... + 14941.

It is an arithmetic number, because the mean of its divisors is an integer number (9762948).

Almost surely, 2^74303731 is an apocalyptic number.

74303731 is a deficient number, since it is larger than the sum of its proper divisors (3799853).

74303731 is a wasteful number, since it uses less digits than its factorization.

74303731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23741.

The product of its (nonzero) digits is 5292, while the sum is 28.

The square root of 74303731 is about 8619.9611948082. The cubic root of 74303731 is about 420.4072599169.

The spelling of 74303731 in words is "seventy-four million, three hundred three thousand, seven hundred thirty-one".