28495957 has 8 divisors (see below), whose sum is σ = 33447296. Its totient is φ = 23764752.

The previous prime is 28495933. The next prime is 28495963. The reversal of 28495957 is 75959482.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28495957 - 2²³ = 20107349 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28495957.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28495057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54753 + ... + 55270.

It is an arithmetic number, because the mean of its divisors is an integer number (4180912).

Almost surely, 2^28495957 is an apocalyptic number.

It is an amenable number.

28495957 is a deficient number, since it is larger than the sum of its proper divisors (4951339).

28495957 is a wasteful number, since it uses less digits than its factorization.

28495957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110067.

The product of its digits is 907200, while the sum is 49.

The square root of 28495957 is about 5338.1604509419. The cubic root of 28495957 is about 305.4412925835.

The spelling of 28495957 in words is "twenty-eight million, four hundred ninety-five thousand, nine hundred fifty-seven".