28770670 has 16 divisors (see below), whose sum is σ = 52079760. Its totient is φ = 11443264.

The previous prime is 28770667. The next prime is 28770673. The reversal of 28770670 is 7607782.

It is an interprime number because it is at equal distance from previous prime (28770667) and next prime (28770673).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28770673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6247 + ... + 9826.

It is an arithmetic number, because the mean of its divisors is an integer number (3254985).

Almost surely, 2^28770670 is an apocalyptic number.

28770670 is a deficient number, since it is larger than the sum of its proper divisors (23309090).

28770670 is a wasteful number, since it uses less digits than its factorization.

28770670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16259.

The product of its (nonzero) digits is 32928, while the sum is 37.

The square root of 28770670 is about 5363.8297885000. The cubic root of 28770670 is about 306.4196827269.

The spelling of 28770670 in words is "twenty-eight million, seven hundred seventy thousand, six hundred seventy".