68172472 has 16 divisors (see below), whose sum is σ = 131947200. Its totient is φ = 32986560.

The previous prime is 68172427. The next prime is 68172491. The reversal of 68172472 is 27427186.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137197 + ... + 137692.

It is an arithmetic number, because the mean of its divisors is an integer number (8246700).

Almost surely, 2^68172472 is an apocalyptic number.

68172472 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

68172472 is a deficient number, since it is larger than the sum of its proper divisors (63774728).

68172472 is a wasteful number, since it uses less digits than its factorization.

68172472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274926 (or 274922 counting only the distinct ones).

The product of its digits is 37632, while the sum is 37.

The square root of 68172472 is about 8256.6622796382. The cubic root of 68172472 is about 408.5103027813.

It can be divided in two parts, 68172 and 472, that added together give a square (68644 = 262²).

The spelling of 68172472 in words is "sixty-eight million, one hundred seventy-two thousand, four hundred seventy-two".