28999502 has 8 divisors (see below), whose sum is σ = 49713456. Its totient is φ = 12428352.

The previous prime is 28999499. The next prime is 28999513. The reversal of 28999502 is 20599982.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×28999502² = 1681942232496008, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1035683 + ... + 1035710.

It is an arithmetic number, because the mean of its divisors is an integer number (6214182).

Almost surely, 2^28999502 is an apocalyptic number.

28999502 is a deficient number, since it is larger than the sum of its proper divisors (20713954).

28999502 is a wasteful number, since it uses less digits than its factorization.

28999502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2071402.

The product of its (nonzero) digits is 116640, while the sum is 44.

The square root of 28999502 is about 5385.1185687968. The cubic root of 28999502 is about 307.2299239220.

The spelling of 28999502 in words is "twenty-eight million, nine hundred ninety-nine thousand, five hundred two".