33790091 has 4 divisors (see below), whose sum is σ = 34036872. Its totient is φ = 33543312.

The previous prime is 33790087. The next prime is 33790111. The reversal of 33790091 is 19009733.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19009733 = 1471 ⋅12923.

It is a cyclic number.

It is not a de Polignac number, because 33790091 - 2² = 33790087 is a prime.

It is a super-2 number, since 2×33790091² = 2283540499576562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33790061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123185 + ... + 123458.

It is an arithmetic number, because the mean of its divisors is an integer number (8509218).

Almost surely, 2^33790091 is an apocalyptic number.

33790091 is a deficient number, since it is larger than the sum of its proper divisors (246781).

33790091 is a wasteful number, since it uses less digits than its factorization.

33790091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246780.

The product of its (nonzero) digits is 5103, while the sum is 32.

The square root of 33790091 is about 5812.9244791241. The cubic root of 33790091 is about 323.2931135244.

The spelling of 33790091 in words is "thirty-three million, seven hundred ninety thousand, ninety-one".