901989033 has 32 divisors (see below), whose sum is σ = 1407144960. Its totient is φ = 508098240.

The previous prime is 901989031. The next prime is 901989037. The reversal of 901989033 is 330989109.

It is a happy number.

It is not a de Polignac number, because 901989033 - 2¹ = 901989031 is a prime.

It is not an unprimeable number, because it can be changed into a prime (901989031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19660 + ... + 46802.

It is an arithmetic number, because the mean of its divisors is an integer number (43973280).

Almost surely, 2^901989033 is an apocalyptic number.

It is an amenable number.

901989033 is a deficient number, since it is larger than the sum of its proper divisors (505155927).

901989033 is a wasteful number, since it uses less digits than its factorization.

901989033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27229.

The product of its (nonzero) digits is 52488, while the sum is 42.

The square root of 901989033 is about 30033.1322542288. The cubic root of 901989033 is about 966.2001169281.

The spelling of 901989033 in words is "nine hundred one million, nine hundred eighty-nine thousand, thirty-three".