28696375 has 16 divisors (see below), whose sum is σ = 36047232. Its totient is φ = 22807200.

The previous prime is 28696333. The next prime is 28696379. The reversal of 28696375 is 57369682.

It is a de Polignac number, because none of the positive numbers 2^k-28696375 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 (28696379) 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, 20962 + ... + 22288.

It is an arithmetic number, because the mean of its divisors is an integer number (2252952).

Almost surely, 2^28696375 is an apocalyptic number.

28696375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28696375 is a deficient number, since it is larger than the sum of its proper divisors (7350857).

28696375 is a wasteful number, since it uses less digits than its factorization.

28696375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1515 (or 1505 counting only the distinct ones).

The product of its digits is 544320, while the sum is 46.

The square root of 28696375 is about 5356.8997563890. The cubic root of 28696375 is about 306.1556977454.

The spelling of 28696375 in words is "twenty-eight million, six hundred ninety-six thousand, three hundred seventy-five".