972457 has 4 divisors (see below), whose sum is σ = 1006020. Its totient is φ = 938896.

The previous prime is 972443. The next prime is 972469. The reversal of 972457 is 754279.

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 646416 + 326041 = 804^2 + 571^2 .

It is a cyclic number.

It is not a de Polignac number, because 972457 - 2⁷ = 972329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (972407) 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, 16738 + ... + 16795.

It is an arithmetic number, because the mean of its divisors is an integer number (251505).

2⁹⁷²⁴⁵⁷ is an apocalyptic number.

It is an amenable number.

972457 is a deficient number, since it is larger than the sum of its proper divisors (33563).

972457 is a wasteful number, since it uses less digits than its factorization.

972457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33562.

The product of its digits is 17640, while the sum is 34.

The square root of 972457 is about 986.1323440594. The cubic root of 972457 is about 99.0733395278.

The spelling of 972457 in words is "nine hundred seventy-two thousand, four hundred fifty-seven".