65090172 has 48 divisors (see below), whose sum is σ = 176433152. Its totient is φ = 18290880.

The previous prime is 65090171. The next prime is 65090189. The reversal of 65090172 is 27109056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65090171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1228 + ... + 11475.

Almost surely, 2^65090172 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65090172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88216576).

65090172 is an abundant number, since it is smaller than the sum of its proper divisors (111342980).

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

65090172 is a wasteful number, since it uses less digits than its factorization.

65090172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12778 (or 12776 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 65090172 is about 8067.8480402149. The cubic root of 65090172 is about 402.2584165555.

The spelling of 65090172 in words is "sixty-five million, ninety thousand, one hundred seventy-two".