33900001 has 4 divisors (see below), whose sum is σ = 33931312. Its totient is φ = 33868692.

The previous prime is 33899993. The next prime is 33900007. The reversal of 33900001 is 10000933.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10000933 = 131 ⋅76343.

It is a cyclic number.

It is not a de Polignac number, because 33900001 - 2³ = 33899993 is a prime.

It is a super-2 number, since 2×33900001² = 2298420135600002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33900007) 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, 13971 + ... + 16216.

It is an arithmetic number, because the mean of its divisors is an integer number (8482828).

Almost surely, 2^33900001 is an apocalyptic number.

It is an amenable number.

33900001 is a deficient number, since it is larger than the sum of its proper divisors (31311).

33900001 is a wasteful number, since it uses less digits than its factorization.

33900001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31310.

The product of its (nonzero) digits is 81, while the sum is 16.

The square root of 33900001 is about 5822.3707370795. The cubic root of 33900001 is about 323.6432624188.

Adding to 33900001 its reverse (10000933), we get a palindrome (43900934).

The spelling of 33900001 in words is "thirty-three million, nine hundred thousand, one".