900065772 has 18 divisors (see below), whose sum is σ = 2275166348. Its totient is φ = 300021912.

The previous prime is 900065767. The next prime is 900065783. The reversal of 900065772 is 277560009.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 25001827 = 900065772 / (9 + 0 + 0 + 0 + 6 + 5 + 7 + 7 + 2).

It is a nialpdrome in base 14.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12500878 + ... + 12500949.

Almost surely, 2^900065772 is an apocalyptic number.

It is an amenable number.

900065772 is an abundant number, since it is smaller than the sum of its proper divisors (1375100576).

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

900065772 is a wasteful number, since it uses less digits than its factorization.

900065772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25001837 (or 25001832 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The square root of 900065772 is about 30001.0961799732. The cubic root of 900065772 is about 965.5129033541.

The spelling of 900065772 in words is "nine hundred million, sixty-five thousand, seven hundred seventy-two".