697389053 has 4 divisors (see below), whose sum is σ = 734093760. Its totient is φ = 660684348.

The previous prime is 697389037. The next prime is 697389073. The reversal of 697389053 is 350983796.

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 697389053 - 2⁴ = 697389037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 697388992 and 697389010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (697389023) 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, 18352325 + ... + 18352362.

It is an arithmetic number, because the mean of its divisors is an integer number (183523440).

Almost surely, 2^697389053 is an apocalyptic number.

It is an amenable number.

697389053 is a deficient number, since it is larger than the sum of its proper divisors (36704707).

697389053 is a wasteful number, since it uses less digits than its factorization.

697389053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36704706.

The product of its (nonzero) digits is 1224720, while the sum is 50.

The square root of 697389053 is about 26408.1247535678. The cubic root of 697389053 is about 886.7986881229.

The spelling of 697389053 in words is "six hundred ninety-seven million, three hundred eighty-nine thousand, fifty-three".