28913495 has 16 divisors (see below), whose sum is σ = 37521792. Its totient is φ = 21262080.

The previous prime is 28913491. The next prime is 28913527. The reversal of 28913495 is 59431982.

It is not a de Polignac number, because 28913495 - 2² = 28913491 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28913491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17474 + ... + 19056.

It is an arithmetic number, because the mean of its divisors is an integer number (2345112).

Almost surely, 2^28913495 is an apocalyptic number.

28913495 is a deficient number, since it is larger than the sum of its proper divisors (8608297).

28913495 is a wasteful number, since it uses less digits than its factorization.

28913495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1882.

The product of its digits is 77760, while the sum is 41.

The square root of 28913495 is about 5377.1270210029. The cubic root of 28913495 is about 306.9258946784.

The spelling of 28913495 in words is "twenty-eight million, nine hundred thirteen thousand, four hundred ninety-five".