65371904 has 54 divisors (see below), whose sum is σ = 141391656. Its totient is φ = 30151680.

The previous prime is 65371897. The next prime is 65371909. The reversal of 65371904 is 40917356.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65371909) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42509 + ... + 44019.

It is an arithmetic number, because the mean of its divisors is an integer number (2618364).

Almost surely, 2^65371904 is an apocalyptic number.

65371904 is a gapful number since it is divisible by the number (64) 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 65371904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70695828).

65371904 is an abundant number, since it is smaller than the sum of its proper divisors (76019752).

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

65371904 is a wasteful number, since it uses less digits than its factorization.

65371904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1553 (or 1526 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 65371904 is about 8085.2893578400. The cubic root of 65371904 is about 402.8379508032.

The spelling of 65371904 in words is "sixty-five million, three hundred seventy-one thousand, nine hundred four".