52697689 has 4 divisors (see below), whose sum is σ = 57488400. Its totient is φ = 47906980.

The previous prime is 52697653. The next prime is 52697693. The reversal of 52697689 is 98679625.

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 not a de Polignac number, because 52697689 - 2¹¹ = 52695641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52697609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2395339 + ... + 2395360.

It is an arithmetic number, because the mean of its divisors is an integer number (14372100).

Almost surely, 2^52697689 is an apocalyptic number.

It is an amenable number.

52697689 is a deficient number, since it is larger than the sum of its proper divisors (4790711).

52697689 is a wasteful number, since it uses less digits than its factorization.

52697689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4790710.

The product of its digits is 1632960, while the sum is 52.

The square root of 52697689 is about 7259.3173921520. The cubic root of 52697689 is about 374.9130204196.

The spelling of 52697689 in words is "fifty-two million, six hundred ninety-seven thousand, six hundred eighty-nine".