74739723 has 8 divisors (see below), whose sum is σ = 99697728. Its totient is φ = 49804104.

The previous prime is 74739689. The next prime is 74739733. The reversal of 74739723 is 32793747.

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

It is a de Polignac number, because none of the positive numbers 2^k-74739723 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74739733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5140 + ... + 13262.

It is an arithmetic number, because the mean of its divisors is an integer number (12462216).

Almost surely, 2^74739723 is an apocalyptic number.

74739723 is a deficient number, since it is larger than the sum of its proper divisors (24958005).

74739723 is a wasteful number, since it uses less digits than its factorization.

74739723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11193.

The product of its digits is 222264, while the sum is 42.

The square root of 74739723 is about 8645.2138782103. The cubic root of 74739723 is about 421.2279314076.

It can be divided in two parts, 747 and 39723, that added together give a triangular number (40470 = T₂₈₄).

The spelling of 74739723 in words is "seventy-four million, seven hundred thirty-nine thousand, seven hundred twenty-three".