28212994 has 8 divisors (see below), whose sum is σ = 42497280. Its totient is φ = 14047236.

The previous prime is 28212971. The next prime is 28213067. The reversal of 28212994 is 49921282.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29034 + ... + 29989.

It is an arithmetic number, because the mean of its divisors is an integer number (5312160).

Almost surely, 2^28212994 is an apocalyptic number.

28212994 is a deficient number, since it is larger than the sum of its proper divisors (14284286).

28212994 is a wasteful number, since it uses less digits than its factorization.

28212994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59264.

The product of its digits is 20736, while the sum is 37.

The square root of 28212994 is about 5311.5905339173. The cubic root of 28212994 is about 304.4269235402.

The spelling of 28212994 in words is "twenty-eight million, two hundred twelve thousand, nine hundred ninety-four".