28322974 has 4 divisors (see below), whose sum is σ = 42484464. Its totient is φ = 14161486.

The previous prime is 28322953. The next prime is 28322981. The reversal of 28322974 is 47922382.

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, 7080742 + ... + 7080745.

It is an arithmetic number, because the mean of its divisors is an integer number (10621116).

Almost surely, 2^28322974 is an apocalyptic number.

28322974 is a deficient number, since it is larger than the sum of its proper divisors (14161490).

28322974 is a wasteful number, since it uses less digits than its factorization.

28322974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14161489.

The product of its digits is 48384, while the sum is 37.

The square root of 28322974 is about 5321.9332953354. The cubic root of 28322974 is about 304.8219833714.

The spelling of 28322974 in words is "twenty-eight million, three hundred twenty-two thousand, nine hundred seventy-four".