28969710 has 64 divisors (see below), whose sum is σ = 86690304. Its totient is φ = 6019200.

The previous prime is 28969709. The next prime is 28969727. The reversal of 28969710 is 1796982.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3961 + ... + 8580.

It is an arithmetic number, because the mean of its divisors is an integer number (1354536).

Almost surely, 2^28969710 is an apocalyptic number.

28969710 is an abundant number, since it is smaller than the sum of its proper divisors (57720594).

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

28969710 is a wasteful number, since it uses less digits than its factorization.

28969710 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12569.

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 28969710 is about 5382.3517164897. The cubic root of 28969710 is about 307.1246792404.

The spelling of 28969710 in words is "twenty-eight million, nine hundred sixty-nine thousand, seven hundred ten".