28613465 has 16 divisors (see below), whose sum is σ = 37532160. Its totient is φ = 20847360.

The previous prime is 28613461. The next prime is 28613471. The reversal of 28613465 is 56431682.

It is not a de Polignac number, because 28613465 - 2² = 28613461 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28613461) 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, 2795 + ... + 8064.

It is an arithmetic number, because the mean of its divisors is an integer number (2345760).

Almost surely, 2^28613465 is an apocalyptic number.

It is an amenable number.

28613465 is a deficient number, since it is larger than the sum of its proper divisors (8918695).

28613465 is a wasteful number, since it uses less digits than its factorization.

28613465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10912.

The product of its digits is 34560, while the sum is 35.

The square root of 28613465 is about 5349.1555408307. The cubic root of 28613465 is about 305.8605634387.

The spelling of 28613465 in words is "twenty-eight million, six hundred thirteen thousand, four hundred sixty-five".