39457 has 8 divisors (see below), whose sum is σ = 45792. Its totient is φ = 33600.

The previous prime is 39451. The next prime is 39461. The reversal of 39457 is 75493.

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

It is a cyclic number.

It is not a de Polignac number, because 39457 - 2¹¹ = 37409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39451) 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, 82 + ... + 292.

It is an arithmetic number, because the mean of its divisors is an integer number (5724).

2³⁹⁴⁵⁷ is an apocalyptic number.

It is an amenable number.

39457 is a deficient number, since it is larger than the sum of its proper divisors (6335).

39457 is a wasteful number, since it uses less digits than its factorization.

39457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239.

The product of its digits is 3780, while the sum is 28.

The square root of 39457 is about 198.6378614464. The cubic root of 39457 is about 34.0440605245.

It can be divided in two parts, 39 and 457, that added together give a triangular number (496 = T₃₁).

The spelling of 39457 in words is "thirty-nine thousand, four hundred fifty-seven".