69428715 has 8 divisors (see below), whose sum is σ = 111085968. Its totient is φ = 37028640.

The previous prime is 69428707. The next prime is 69428759. The reversal of 69428715 is 51782496.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 69428715 - 2³ = 69428707 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2314276 + ... + 2314305.

It is an arithmetic number, because the mean of its divisors is an integer number (13885746).

Almost surely, 2^69428715 is an apocalyptic number.

69428715 is a deficient number, since it is larger than the sum of its proper divisors (41657253).

69428715 is a wasteful number, since it uses less digits than its factorization.

69428715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4628589.

The product of its digits is 120960, while the sum is 42.

The square root of 69428715 is about 8332.3895132189. The cubic root of 69428715 is about 411.0043096617.

The spelling of 69428715 in words is "sixty-nine million, four hundred twenty-eight thousand, seven hundred fifteen".