65447892 has 96 divisors (see below), whose sum is σ = 184060800. Its totient is φ = 20030976.

The previous prime is 65447891. The next prime is 65447911. The reversal of 65447892 is 29874456.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65447891) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78534 + ... + 79362.

It is an arithmetic number, because the mean of its divisors is an integer number (1917300).

Almost surely, 2^65447892 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 65447892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92030400).

65447892 is an abundant number, since it is smaller than the sum of its proper divisors (118612908).

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

65447892 is a wasteful number, since it uses less digits than its factorization.

65447892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902 (or 894 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 65447892 is about 8089.9871446128. The cubic root of 65447892 is about 402.9939760238.

The spelling of 65447892 in words is "sixty-five million, four hundred forty-seven thousand, eight hundred ninety-two".