672457 has 4 divisors (see below), whose sum is σ = 675856. Its totient is φ = 669060.

The previous prime is 672443. The next prime is 672473. The reversal of 672457 is 754276.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 672457 - 2¹¹ = 670409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (672557) 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, 1383 + ... + 1804.

It is an arithmetic number, because the mean of its divisors is an integer number (168964).

2⁶⁷²⁴⁵⁷ is an apocalyptic number.

It is an amenable number.

672457 is a deficient number, since it is larger than the sum of its proper divisors (3399).

672457 is a wasteful number, since it uses less digits than its factorization.

672457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3398.

The product of its digits is 11760, while the sum is 31.

The square root of 672457 is about 820.0347553610. The cubic root of 672457 is about 87.6102338565.

The spelling of 672457 in words is "six hundred seventy-two thousand, four hundred fifty-seven".