69913897 has 16 divisors (see below), whose sum is σ = 75124224. Its totient is φ = 64944000.

The previous prime is 69913853. The next prime is 69913919. The reversal of 69913897 is 79831996.

It is not a de Polignac number, because 69913897 - 2¹⁵ = 69881129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69913807) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84747 + ... + 85567.

It is an arithmetic number, because the mean of its divisors is an integer number (4695264).

Almost surely, 2^69913897 is an apocalyptic number.

69913897 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

It is an amenable number.

69913897 is a deficient number, since it is larger than the sum of its proper divisors (5210327).

69913897 is a wasteful number, since it uses less digits than its factorization.

69913897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 960.

The product of its digits is 734832, while the sum is 52.

The square root of 69913897 is about 8361.4530435804. The cubic root of 69913897 is about 411.9594820650.

The spelling of 69913897 in words is "sixty-nine million, nine hundred thirteen thousand, eight hundred ninety-seven".