28152902 has 4 divisors (see below), whose sum is σ = 42229356. Its totient is φ = 14076450.

The previous prime is 28152863. The next prime is 28152919. The reversal of 28152902 is 20925182.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7038224 + ... + 7038227.

It is an arithmetic number, because the mean of its divisors is an integer number (10557339).

Almost surely, 2^28152902 is an apocalyptic number.

28152902 is a deficient number, since it is larger than the sum of its proper divisors (14076454).

28152902 is a wasteful number, since it uses less digits than its factorization.

28152902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14076453.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 28152902 is about 5305.9308325684. The cubic root of 28152902 is about 304.2106328222.

The spelling of 28152902 in words is "twenty-eight million, one hundred fifty-two thousand, nine hundred two".