33790421 has 8 divisors (see below), whose sum is σ = 39272640. Its totient is φ = 28471968.

The previous prime is 33790411. The next prime is 33790429. The reversal of 33790421 is 12409733.

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

It is not a de Polignac number, because 33790421 - 2⁶ = 33790357 is a prime.

It is a super-2 number, since 2×33790421² = 2283585102714482, 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 (33790429) 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, 40496 + ... + 41321.

It is an arithmetic number, because the mean of its divisors is an integer number (4909080).

Almost surely, 2^33790421 is an apocalyptic number.

It is an amenable number.

33790421 is a deficient number, since it is larger than the sum of its proper divisors (5482219).

33790421 is an equidigital number, since it uses as much as digits as its factorization.

33790421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81883.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 33790421 is about 5812.9528640786. The cubic root of 33790421 is about 323.2941659669.

The spelling of 33790421 in words is "thirty-three million, seven hundred ninety thousand, four hundred twenty-one".