69428706 has 32 divisors (see below), whose sum is σ = 140764608. Its totient is φ = 22827840.

The previous prime is 69428701. The next prime is 69428707. The reversal of 69428706 is 60782496.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (69428701) 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, 218860 + ... + 219176.

It is an arithmetic number, because the mean of its divisors is an integer number (4398894).

Almost surely, 2^69428706 is an apocalyptic number.

69428706 is an abundant number, since it is smaller than the sum of its proper divisors (71335902).

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

69428706 is a wasteful number, since it uses less digits than its factorization.

69428706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 69428706 is about 8332.3889731577. The cubic root of 69428706 is about 411.0042919023.

The spelling of 69428706 in words is "sixty-nine million, four hundred twenty-eight thousand, seven hundred six".