28829075 has 24 divisors (see below), whose sum is σ = 39521280. Its totient is φ = 20685600.

The previous prime is 28829069. The next prime is 28829077. The reversal of 28829075 is 57092882.

It is a happy number.

It is not a de Polignac number, because 28829075 - 2⁶ = 28829011 is a prime.

It is a super-2 number, since 2×28829075² = 1662231130711250, which contains 22 as substring.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (28829077) 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, 21062 + ... + 22388.

It is an arithmetic number, because the mean of its divisors is an integer number (1646720).

Almost surely, 2^28829075 is an apocalyptic number.

28829075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28829075 is a deficient number, since it is larger than the sum of its proper divisors (10692205).

28829075 is a wasteful number, since it uses less digits than its factorization.

28829075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1427 (or 1422 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 28829075 is about 5369.2713658373. The cubic root of 28829075 is about 306.6268884816.

The spelling of 28829075 in words is "twenty-eight million, eight hundred twenty-nine thousand, seventy-five".