68999528 has 32 divisors (see below), whose sum is σ = 139708800. Its totient is φ = 31758528.

The previous prime is 68999519. The next prime is 68999537. The reversal of 68999528 is 82599986.

It is an interprime number because it is at equal distance from previous prime (68999519) and next prime (68999537).

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, 51653 + ... + 52971.

It is an arithmetic number, because the mean of its divisors is an integer number (4365900).

Almost surely, 2^68999528 is an apocalyptic number.

It is an amenable number.

68999528 is an abundant number, since it is smaller than the sum of its proper divisors (70709272).

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

68999528 is a wasteful number, since it uses less digits than its factorization.

68999528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1841 (or 1837 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 56.

The square root of 68999528 is about 8306.5954518082. The cubic root of 68999528 is about 410.1556577318.

The spelling of 68999528 in words is "sixty-eight million, nine hundred ninety-nine thousand, five hundred twenty-eight".