65434860 has 144 divisors (see below), whose sum is σ = 213464160. Its totient is φ = 16219008.

The previous prime is 65434849. The next prime is 65434861. The reversal of 65434860 is 6843456.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (65434861) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1234594 + ... + 1234646.

It is an arithmetic number, because the mean of its divisors is an integer number (1482390).

Almost surely, 2^65434860 is an apocalyptic number.

65434860 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65434860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106732080).

65434860 is an abundant number, since it is smaller than the sum of its proper divisors (148029300).

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

65434860 is a wasteful number, since it uses less digits than its factorization.

65434860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125 (or 82 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 65434860 is about 8089.1816644207. The cubic root of 65434860 is about 402.9672261624.

The spelling of 65434860 in words is "sixty-five million, four hundred thirty-four thousand, eight hundred sixty".