69899028 has 12 divisors (see below), whose sum is σ = 163097760. Its totient is φ = 23299672.

The previous prime is 69899009. The next prime is 69899041. The reversal of 69899028 is 82099896.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2912448 + ... + 2912471.

It is an arithmetic number, because the mean of its divisors is an integer number (13591480).

Almost surely, 2^69899028 is an apocalyptic number.

It is an amenable number.

69899028 is an abundant number, since it is smaller than the sum of its proper divisors (93198732).

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

69899028 is a wasteful number, since it uses less digits than its factorization.

69899028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5824926 (or 5824924 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 51.

The square root of 69899028 is about 8360.5638565829. The cubic root of 69899028 is about 411.9302753784.

The spelling of 69899028 in words is "sixty-nine million, eight hundred ninety-nine thousand, twenty-eight".