65897472 has 88 divisors (see below), whose sum is σ = 185048800. Its totient is φ = 20791296.

The previous prime is 65897459. The next prime is 65897501. The reversal of 65897472 is 27479856.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57804 + ... + 58932.

Almost surely, 2^65897472 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 65897472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92524400).

65897472 is an abundant number, since it is smaller than the sum of its proper divisors (119151328).

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

65897472 is a wasteful number, since it uses less digits than its factorization.

65897472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1171 (or 1153 counting only the distinct ones).

The product of its digits is 846720, while the sum is 48.

The square root of 65897472 is about 8117.7257898995. The cubic root of 65897472 is about 403.9146308526.

The spelling of 65897472 in words is "sixty-five million, eight hundred ninety-seven thousand, four hundred seventy-two".