28963995 has 16 divisors (see below), whose sum is σ = 46414080. Its totient is φ = 15423584.

The previous prime is 28963967. The next prime is 28964009. The reversal of 28963995 is 59936982.

It is a cyclic number.

It is not a de Polignac number, because 28963995 - 2¹⁶ = 28898459 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13186 + ... + 15224.

It is an arithmetic number, because the mean of its divisors is an integer number (2900880).

Almost surely, 2^28963995 is an apocalyptic number.

28963995 is a deficient number, since it is larger than the sum of its proper divisors (17450085).

28963995 is a wasteful number, since it uses less digits than its factorization.

28963995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2994.

The product of its digits is 1049760, while the sum is 51.

The square root of 28963995 is about 5381.8207885436. The cubic root of 28963995 is about 307.1044819036.

The spelling of 28963995 in words is "twenty-eight million, nine hundred sixty-three thousand, nine hundred ninety-five".