68727492 has 36 divisors (see below), whose sum is σ = 174168540. Its totient is φ = 22851072.

The previous prime is 68727479. The next prime is 68727511. The reversal of 68727492 is 29472786.

It can be written as a sum of positive squares in 2 ways, for example, as 6380676 + 62346816 = 2526^2 + 7896^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×68727492² = 9446936313220128, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13384 + ... + 17792.

It is an arithmetic number, because the mean of its divisors is an integer number (4838015).

Almost surely, 2^68727492 is an apocalyptic number.

It is an amenable number.

68727492 is an abundant number, since it is smaller than the sum of its proper divisors (105441048).

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

68727492 is a wasteful number, since it uses less digits than its factorization.

68727492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4852 (or 4847 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 68727492 is about 8290.2045813116. The cubic root of 68727492 is about 409.6159242797.

The spelling of 68727492 in words is "sixty-eight million, seven hundred twenty-seven thousand, four hundred ninety-two".