65477472 has 96 divisors (see below), whose sum is σ = 185667552. Its totient is φ = 20127744.

The previous prime is 65477471. The next prime is 65477497. The reversal of 65477472 is 27477456.

It is a tau number, because it is divible by the number of its divisors (96).

Its product of digits (329280) is a multiple of the sum of its prime factors (840).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65477471) 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, 86118 + ... + 86874.

It is an arithmetic number, because the mean of its divisors is an integer number (1934037).

Almost surely, 2^65477472 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 65477472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92833776).

65477472 is an abundant number, since it is smaller than the sum of its proper divisors (120190080).

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

65477472 is a wasteful number, since it uses less digits than its factorization.

65477472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840 (or 832 counting only the distinct ones).

The product of its digits is 329280, while the sum is 42.

The square root of 65477472 is about 8091.8151239385. The cubic root of 65477472 is about 403.0546796157.

The spelling of 65477472 in words is "sixty-five million, four hundred seventy-seven thousand, four hundred seventy-two".