28333946 has 4 divisors (see below), whose sum is σ = 42500922. Its totient is φ = 14166972.

The previous prime is 28333939. The next prime is 28333967. The reversal of 28333946 is 64933382.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64933382 = 2 ⋅32466691.

It can be written as a sum of positive squares in only one way, i.e., 24393721 + 3940225 = 4939^2 + 1985^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7083485 + ... + 7083488.

Almost surely, 2^28333946 is an apocalyptic number.

28333946 is a deficient number, since it is larger than the sum of its proper divisors (14166976).

28333946 is a wasteful number, since it uses less digits than its factorization.

28333946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14166975.

The product of its digits is 93312, while the sum is 38.

The square root of 28333946 is about 5322.9640239250. The cubic root of 28333946 is about 304.8613398201.

The spelling of 28333946 in words is "twenty-eight million, three hundred thirty-three thousand, nine hundred forty-six".