9901933 has 4 divisors (see below), whose sum is σ = 9910080. Its totient is φ = 9893788.

The previous prime is 9901901. The next prime is 9901981. The reversal of 9901933 is 3391099.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 9901933 - 2⁵ = 9901901 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 (9901433) 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, 1843 + ... + 4816.

It is an arithmetic number, because the mean of its divisors is an integer number (2477520).

Almost surely, 2^9901933 is an apocalyptic number.

It is an amenable number.

9901933 is a deficient number, since it is larger than the sum of its proper divisors (8147).

9901933 is a wasteful number, since it uses less digits than its factorization.

9901933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8146.

The product of its (nonzero) digits is 6561, while the sum is 34.

The square root of 9901933 is about 3146.7337033820. The cubic root of 9901933 is about 214.7368910564.

The spelling of 9901933 in words is "nine million, nine hundred one thousand, nine hundred thirty-three".