33387994 has 8 divisors (see below), whose sum is σ = 50644980. Its totient is φ = 16506336.

The previous prime is 33387989. The next prime is 33388009. The reversal of 33387994 is 49978333.

It can be written as a sum of positive squares in 2 ways, for example, as 31979025 + 1408969 = 5655^2 + 1187^2 .

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

It is a super-2 number, since 2×33387994² = 2229516286688072, which contains 22 as substring.

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, 93609 + ... + 93964.

Almost surely, 2^33387994 is an apocalyptic number.

33387994 is a deficient number, since it is larger than the sum of its proper divisors (17256986).

33387994 is a wasteful number, since it uses less digits than its factorization.

33387994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187664.

The product of its digits is 489888, while the sum is 46.

The square root of 33387994 is about 5778.2345054523. The cubic root of 33387994 is about 322.0056131115.

The spelling of 33387994 in words is "thirty-three million, three hundred eighty-seven thousand, nine hundred ninety-four".