28970080 has 24 divisors (see below), whose sum is σ = 68442192. Its totient is φ = 11587968.

The previous prime is 28970077. The next prime is 28970083. The reversal of 28970080 is 8007982.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28970077) and next prime (28970083).

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28970083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90372 + ... + 90691.

It is an arithmetic number, because the mean of its divisors is an integer number (2851758).

Almost surely, 2^28970080 is an apocalyptic number.

28970080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28970080 is an abundant number, since it is smaller than the sum of its proper divisors (39472112).

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

28970080 is a wasteful number, since it uses less digits than its factorization.

28970080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181078 (or 181070 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 28970080 is about 5382.3860879725. The cubic root of 28970080 is about 307.1259867630.

The spelling of 28970080 in words is "twenty-eight million, nine hundred seventy thousand, eighty".