69929013 has 16 divisors (see below), whose sum is σ = 116246016. Its totient is φ = 36326640.

The previous prime is 69929011. The next prime is 69929029. The reversal of 69929013 is 31092996.

It is a happy number.

It is not a de Polignac number, because 69929013 - 2¹ = 69929011 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69929011) 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, 151131 + ... + 151592.

It is an arithmetic number, because the mean of its divisors is an integer number (7265376).

Almost surely, 2^69929013 is an apocalyptic number.

It is an amenable number.

69929013 is a deficient number, since it is larger than the sum of its proper divisors (46317003).

69929013 is a wasteful number, since it uses less digits than its factorization.

69929013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302744.

The product of its (nonzero) digits is 26244, while the sum is 39.

The square root of 69929013 is about 8362.3569046053. The cubic root of 69929013 is about 411.9891696811.

The spelling of 69929013 in words is "sixty-nine million, nine hundred twenty-nine thousand, thirteen".