28941579 has 12 divisors (see below), whose sum is σ = 44005000. Its totient is φ = 18278784.

The previous prime is 28941557. The next prime is 28941589. The reversal of 28941579 is 97514982.

28941579 = T₄₅ + T₄₆ + ... + T₅₅₇.

It is not a de Polignac number, because 28941579 - 2¹¹ = 28939531 is a prime.

It is a super-2 number, since 2×28941579² = 1675229990026482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28941529) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 84454 + ... + 84795.

Almost surely, 2^28941579 is an apocalyptic number.

28941579 is a deficient number, since it is larger than the sum of its proper divisors (15063421).

28941579 is a wasteful number, since it uses less digits than its factorization.

28941579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169274 (or 169271 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 28941579 is about 5379.7378188904. The cubic root of 28941579 is about 307.0252360359.

The spelling of 28941579 in words is "twenty-eight million, nine hundred forty-one thousand, five hundred seventy-nine".