68457 has 8 divisors (see below), whose sum is σ = 96160. Its totient is φ = 43200.

The previous prime is 68449. The next prime is 68473. The reversal of 68457 is 75486.

It is a happy number.

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

It is not a de Polignac number, because 68457 - 2³ = 68449 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68437) 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, 544 + ... + 657.

It is an arithmetic number, because the mean of its divisors is an integer number (12020).

2⁶⁸⁴⁵⁷ is an apocalyptic number.

It is an amenable number.

68457 is a deficient number, since it is larger than the sum of its proper divisors (27703).

68457 is a wasteful number, since it uses less digits than its factorization.

68457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1223.

The product of its digits is 6720, while the sum is 30.

The square root of 68457 is about 261.6428863929. The cubic root of 68457 is about 40.9077840211.

It can be divided in two parts, 684 and 57, that added together give a triangular number (741 = T₃₈).

The spelling of 68457 in words is "sixty-eight thousand, four hundred fifty-seven".