69880137 has 4 divisors (see below), whose sum is σ = 93173520. Its totient is φ = 46586756.

The previous prime is 69880133. The next prime is 69880147. The reversal of 69880137 is 73108896.

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 69880137 - 2² = 69880133 is a prime.

It is not an unprimeable number, because it can be changed into a prime (69880133) 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, 11646687 + ... + 11646692.

It is an arithmetic number, because the mean of its divisors is an integer number (23293380).

Almost surely, 2^69880137 is an apocalyptic number.

It is an amenable number.

69880137 is a deficient number, since it is larger than the sum of its proper divisors (23293383).

69880137 is a wasteful number, since it uses less digits than its factorization.

69880137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23293382.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 69880137 is about 8359.4340119412. The cubic root of 69880137 is about 411.8931624352.

The spelling of 69880137 in words is "sixty-nine million, eight hundred eighty thousand, one hundred thirty-seven".