28998070 has 32 divisors (see below), whose sum is σ = 54050976. Its totient is φ = 11193600.

The previous prime is 28998043. The next prime is 28998077. The reversal of 28998070 is 7089982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28998077) 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, 43540 + ... + 44200.

It is an arithmetic number, because the mean of its divisors is an integer number (1689093).

Almost surely, 2^28998070 is an apocalyptic number.

28998070 is a deficient number, since it is larger than the sum of its proper divisors (25052906).

28998070 is a wasteful number, since it uses less digits than its factorization.

28998070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816.

The product of its (nonzero) digits is 72576, while the sum is 43.

The square root of 28998070 is about 5384.9856081516. The cubic root of 28998070 is about 307.2248668180.

The spelling of 28998070 in words is "twenty-eight million, nine hundred ninety-eight thousand, seventy".