28954665 has 24 divisors (see below), whose sum is σ = 52049088. Its totient is φ = 15441840.

The previous prime is 28954661. The next prime is 28954669. The reversal of 28954665 is 56645982.

It is an interprime number because it is at equal distance from previous prime (28954661) and next prime (28954669).

It is not a de Polignac number, because 28954665 - 2² = 28954661 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 28954665.

It is not an unprimeable number, because it can be changed into a prime (28954661) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10701 + ... + 13130.

It is an arithmetic number, because the mean of its divisors is an integer number (2168712).

Almost surely, 2^28954665 is an apocalyptic number.

It is an amenable number.

28954665 is a deficient number, since it is larger than the sum of its proper divisors (23094423).

28954665 is an equidigital number, since it uses as much as digits as its factorization.

28954665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23851 (or 23839 counting only the distinct ones).

The product of its digits is 518400, while the sum is 45.

The square root of 28954665 is about 5380.9539117149. The cubic root of 28954665 is about 307.0715031135.

The spelling of 28954665 in words is "twenty-eight million, nine hundred fifty-four thousand, six hundred sixty-five".