67457 has 4 divisors (see below), whose sum is σ = 72660. Its totient is φ = 62256.

The previous prime is 67453. The next prime is 67477. The reversal of 67457 is 75476.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30976 + 36481 = 176^2 + 191^2 .

It is a cyclic number.

It is not a de Polignac number, because 67457 - 2² = 67453 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2582 + ... + 2607.

It is an arithmetic number, because the mean of its divisors is an integer number (18165).

2⁶⁷⁴⁵⁷ is an apocalyptic number.

It is an amenable number.

67457 is a deficient number, since it is larger than the sum of its proper divisors (5203).

67457 is a wasteful number, since it uses less digits than its factorization.

67457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5202.

The product of its digits is 5880, while the sum is 29.

The square root of 67457 is about 259.7248544133. The cubic root of 67457 is about 40.7076164896.

Adding to 67457 its product of digits (5880), we get a palindrome (73337).

The spelling of 67457 in words is "sixty-seven thousand, four hundred fifty-seven".