33490947 has 8 divisors (see below), whose sum is σ = 51033856. Its totient is φ = 19137672.

The previous prime is 33490927. The next prime is 33490949. The reversal of 33490947 is 74909433.

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

It is not a de Polignac number, because 33490947 - 2¹⁴ = 33474563 is a prime.

It is a super-2 number, since 2×33490947² = 2243287061913618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33490949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 797383 + ... + 797424.

It is an arithmetic number, because the mean of its divisors is an integer number (6379232).

Almost surely, 2^33490947 is an apocalyptic number.

33490947 is a deficient number, since it is larger than the sum of its proper divisors (17542909).

33490947 is a wasteful number, since it uses less digits than its factorization.

33490947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1594817.

The product of its (nonzero) digits is 81648, while the sum is 39.

The square root of 33490947 is about 5787.1363384665. The cubic root of 33490947 is about 322.3362452105.

The spelling of 33490947 in words is "thirty-three million, four hundred ninety thousand, nine hundred forty-seven".