33999413 has 4 divisors (see below), whose sum is σ = 38856480. Its totient is φ = 29142348.

The previous prime is 33999409. The next prime is 33999421. The reversal of 33999413 is 31499933.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 33999413 - 2² = 33999409 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33999403) 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, 2428523 + ... + 2428536.

It is an arithmetic number, because the mean of its divisors is an integer number (9714120).

Almost surely, 2^33999413 is an apocalyptic number.

It is an amenable number.

33999413 is a deficient number, since it is larger than the sum of its proper divisors (4857067).

33999413 is an equidigital number, since it uses as much as digits as its factorization.

33999413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4857066.

The product of its digits is 78732, while the sum is 41.

The square root of 33999413 is about 5830.9015597933. The cubic root of 33999413 is about 323.9593157522.

The spelling of 33999413 in words is "thirty-three million, nine hundred ninety-nine thousand, four hundred thirteen".