33790247 has 4 divisors (see below), whose sum is σ = 33965520. Its totient is φ = 33614976.

The previous prime is 33790223. The next prime is 33790259. The reversal of 33790247 is 74209733.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 33790247 - 2¹⁴ = 33773863 is a prime.

It is a super-2 number, since 2×33790247² = 2283561584642018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33790147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87347 + ... + 87732.

It is an arithmetic number, because the mean of its divisors is an integer number (8491380).

Almost surely, 2^33790247 is an apocalyptic number.

33790247 is a deficient number, since it is larger than the sum of its proper divisors (175273).

33790247 is a wasteful number, since it uses less digits than its factorization.

33790247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175272.

The product of its (nonzero) digits is 31752, while the sum is 35.

The square root of 33790247 is about 5812.9378974835. The cubic root of 33790247 is about 323.2936110435.

The spelling of 33790247 in words is "thirty-three million, seven hundred ninety thousand, two hundred forty-seven".