33897900 has 108 divisors (see below), whose sum is σ = 103842312. Its totient is φ = 8536320.

The previous prime is 33897863. The next prime is 33897901. The reversal of 33897900 is 979833.

It is a happy number.

It is a super-2 number, since 2×33897900² = 2298135248820000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33897901) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 108144 + ... + 108456.

Almost surely, 2^33897900 is an apocalyptic number.

33897900 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33897900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51921156).

33897900 is an abundant number, since it is smaller than the sum of its proper divisors (69944412).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33897900 is a wasteful number, since it uses less digits than its factorization.

33897900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368 (or 342 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 33897900 is about 5822.1903094969. The cubic root of 33897900 is about 323.6365761993.

The spelling of 33897900 in words is "thirty-three million, eight hundred ninety-seven thousand, nine hundred".