28649199 has 16 divisors (see below), whose sum is σ = 41113440. Its totient is φ = 17679360.

The previous prime is 28649183. The next prime is 28649221. The reversal of 28649199 is 99194682.

It is not a de Polignac number, because 28649199 - 2⁴ = 28649183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28649149) 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, 1494 + ... + 7715.

It is an arithmetic number, because the mean of its divisors is an integer number (2569590).

Almost surely, 2^28649199 is an apocalyptic number.

28649199 is a deficient number, since it is larger than the sum of its proper divisors (12464241).

28649199 is a wasteful number, since it uses less digits than its factorization.

28649199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9290.

The product of its digits is 279936, while the sum is 48.

The square root of 28649199 is about 5352.4946520291. The cubic root of 28649199 is about 305.9878353915.

The spelling of 28649199 in words is "twenty-eight million, six hundred forty-nine thousand, one hundred ninety-nine".