69989730 has 32 divisors (see below), whose sum is σ = 176817600. Its totient is φ = 17681472.

The previous prime is 69989729. The next prime is 69989737. The reversal of 69989730 is 3798996.

It is not an unprimeable number, because it can be changed into a prime (69989737) 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, 60825 + ... + 61964.

It is an arithmetic number, because the mean of its divisors is an integer number (5525550).

Almost surely, 2^69989730 is an apocalyptic number.

69989730 is an abundant number, since it is smaller than the sum of its proper divisors (106827870).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

69989730 is a wasteful number, since it uses less digits than its factorization.

69989730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122818.

The product of its (nonzero) digits is 734832, while the sum is 51.

The square root of 69989730 is about 8365.9864929367. The cubic root of 69989730 is about 412.1083739475.

The spelling of 69989730 in words is "sixty-nine million, nine hundred eighty-nine thousand, seven hundred thirty".