900765221 has 8 divisors (see below), whose sum is σ = 907917120. Its totient is φ = 893633472.

The previous prime is 900765193. The next prime is 900765227. The reversal of 900765221 is 122567009.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 900765221 - 2¹⁴ = 900748837 is a prime.

It is a super-2 number, since 2×900765221² = 1622755966726357682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (900765227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92000 + ... + 101318.

It is an arithmetic number, because the mean of its divisors is an integer number (113489640).

Almost surely, 2^900765221 is an apocalyptic number.

It is an amenable number.

900765221 is a deficient number, since it is larger than the sum of its proper divisors (7151899).

900765221 is a wasteful number, since it uses less digits than its factorization.

900765221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10075.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 900765221 is about 30012.7509735446. The cubic root of 900765221 is about 965.7629414428.

The spelling of 900765221 in words is "nine hundred million, seven hundred sixty-five thousand, two hundred twenty-one".