74437686 has 12 divisors (see below), whose sum is σ = 161281692. Its totient is φ = 24812556.

The previous prime is 74437681. The next prime is 74437709. The reversal of 74437686 is 68673447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74437681) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2067696 + ... + 2067731.

It is an arithmetic number, because the mean of its divisors is an integer number (13440141).

Almost surely, 2^74437686 is an apocalyptic number.

74437686 is an abundant number, since it is smaller than the sum of its proper divisors (86844006).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74437686 is a wasteful number, since it uses less digits than its factorization.

74437686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4135435 (or 4135432 counting only the distinct ones).

The product of its digits is 677376, while the sum is 45.

The square root of 74437686 is about 8627.7277425751. The cubic root of 74437686 is about 420.6597454274.

It can be divided in two parts, 7443 and 7686, that added together give a square (15129 = 123²).

The spelling of 74437686 in words is "seventy-four million, four hundred thirty-seven thousand, six hundred eighty-six".