697413121 has 4 divisors (see below), whose sum is σ = 698077744. Its totient is φ = 696748500.

The previous prime is 697413109. The next prime is 697413127. The reversal of 697413121 is 121314796.

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 697413121 - 2⁵ = 697413089 is a prime.

It is a super-2 number, since 2×697413121² = 972770122685921282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (697413127) 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, 330735 + ... + 332836.

It is an arithmetic number, because the mean of its divisors is an integer number (174519436).

Almost surely, 2^697413121 is an apocalyptic number.

It is an amenable number.

697413121 is a deficient number, since it is larger than the sum of its proper divisors (664623).

697413121 is a wasteful number, since it uses less digits than its factorization.

697413121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664622.

The product of its digits is 9072, while the sum is 34.

The square root of 697413121 is about 26408.5804427273. The cubic root of 697413121 is about 886.8088896143.

The spelling of 697413121 in words is "six hundred ninety-seven million, four hundred thirteen thousand, one hundred twenty-one".