28559416 has 8 divisors (see below), whose sum is σ = 53548920. Its totient is φ = 14279704.

The previous prime is 28559389. The next prime is 28559423. The reversal of 28559416 is 61495582.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×28559416² = 1631280484522112, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1784956 + ... + 1784971.

It is an arithmetic number, because the mean of its divisors is an integer number (6693615).

Almost surely, 2^28559416 is an apocalyptic number.

It is an amenable number.

28559416 is a deficient number, since it is larger than the sum of its proper divisors (24989504).

28559416 is a wasteful number, since it uses less digits than its factorization.

28559416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3569933 (or 3569929 counting only the distinct ones).

The product of its digits is 86400, while the sum is 40.

The square root of 28559416 is about 5344.1010469489. The cubic root of 28559416 is about 305.6678583902.

The spelling of 28559416 in words is "twenty-eight million, five hundred fifty-nine thousand, four hundred sixteen".