52971697 has 4 divisors (see below), whose sum is σ = 53142336. Its totient is φ = 52801060.

The previous prime is 52971689. The next prime is 52971701. The reversal of 52971697 is 79617925.

It is a happy number.

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 52971697 - 2³ = 52971689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52971617) 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, 84853 + ... + 85474.

It is an arithmetic number, because the mean of its divisors is an integer number (13285584).

Almost surely, 2^52971697 is an apocalyptic number.

It is an amenable number.

52971697 is a deficient number, since it is larger than the sum of its proper divisors (170639).

52971697 is a wasteful number, since it uses less digits than its factorization.

52971697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170638.

The product of its digits is 238140, while the sum is 46.

The square root of 52971697 is about 7278.1657716763. The cubic root of 52971697 is about 375.5616992674.

The spelling of 52971697 in words is "fifty-two million, nine hundred seventy-one thousand, six hundred ninety-seven".