28562834 has 4 divisors (see below), whose sum is σ = 42844254. Its totient is φ = 14281416.

The previous prime is 28562797. The next prime is 28562857. The reversal of 28562834 is 43826582.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43826582 = 2 ⋅21913291.

It can be written as a sum of positive squares in only one way, i.e., 14462809 + 14100025 = 3803^2 + 3755^2 .

It is a super-2 number, since 2×28562834² = 1631670972223112, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7140707 + ... + 7140710.

Almost surely, 2^28562834 is an apocalyptic number.

28562834 is a deficient number, since it is larger than the sum of its proper divisors (14281420).

28562834 is a wasteful number, since it uses less digits than its factorization.

28562834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14281419.

The product of its digits is 92160, while the sum is 38.

The square root of 28562834 is about 5344.4208292387. The cubic root of 28562834 is about 305.6800520460.

The spelling of 28562834 in words is "twenty-eight million, five hundred sixty-two thousand, eight hundred thirty-four".