28861154 has 16 divisors (see below), whose sum is σ = 49968576. Its totient is φ = 12246000.

The previous prime is 28861141. The next prime is 28861163. The reversal of 28861154 is 45116882.

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, 8792 + ... + 11619.

It is an arithmetic number, because the mean of its divisors is an integer number (3123036).

Almost surely, 2^28861154 is an apocalyptic number.

28861154 is a deficient number, since it is larger than the sum of its proper divisors (21107422).

28861154 is a wasteful number, since it uses less digits than its factorization.

28861154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20521.

The product of its digits is 15360, while the sum is 35.

The square root of 28861154 is about 5372.2578121308. The cubic root of 28861154 is about 306.7405773857.

The spelling of 28861154 in words is "twenty-eight million, eight hundred sixty-one thousand, one hundred fifty-four".