28521094 has 16 divisors (see below), whose sum is σ = 50580000. Its totient is φ = 11801664.

The previous prime is 28521079. The next prime is 28521107. The reversal of 28521094 is 49012582.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34719 + ... + 35530.

It is an arithmetic number, because the mean of its divisors is an integer number (3161250).

Almost surely, 2^28521094 is an apocalyptic number.

28521094 is a deficient number, since it is larger than the sum of its proper divisors (22058906).

28521094 is a wasteful number, since it uses less digits than its factorization.

28521094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70287.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 28521094 is about 5340.5143947002. The cubic root of 28521094 is about 305.5310786686.

The spelling of 28521094 in words is "twenty-eight million, five hundred twenty-one thousand, ninety-four".