69925613 has 4 divisors (see below), whose sum is σ = 71413440. Its totient is φ = 68437788.

The previous prime is 69925601. The next prime is 69925619. The reversal of 69925613 is 31652996.

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 69925613 - 2²⁰ = 68877037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69925619) 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, 743843 + ... + 743936.

It is an arithmetic number, because the mean of its divisors is an integer number (17853360).

Almost surely, 2^69925613 is an apocalyptic number.

It is an amenable number.

69925613 is a deficient number, since it is larger than the sum of its proper divisors (1487827).

69925613 is a wasteful number, since it uses less digits than its factorization.

69925613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1487826.

The product of its digits is 87480, while the sum is 41.

The square root of 69925613 is about 8362.1536101653. The cubic root of 69925613 is about 411.9824925008.

The spelling of 69925613 in words is "sixty-nine million, nine hundred twenty-five thousand, six hundred thirteen".