28958070 has 32 divisors (see below), whose sum is σ = 70541568. Its totient is φ = 7606368.

The previous prime is 28958057. The next prime is 28958093. The reversal of 28958070 is 7085982.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5194 + ... + 9213.

It is an arithmetic number, because the mean of its divisors is an integer number (2204424).

Almost surely, 2^28958070 is an apocalyptic number.

28958070 is an abundant number, since it is smaller than the sum of its proper divisors (41583498).

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

28958070 is a wasteful number, since it uses less digits than its factorization.

28958070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14484.

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 28958070 is about 5381.2702961290. The cubic root of 28958070 is about 307.0835396021.

The spelling of 28958070 in words is "twenty-eight million, nine hundred fifty-eight thousand, seventy".