65230728 has 32 divisors (see below), whose sum is σ = 163440960. Its totient is φ = 21695040.

The previous prime is 65230709. The next prime is 65230793. The reversal of 65230728 is 82703256.

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, 8898 + ... + 14478.

It is an arithmetic number, because the mean of its divisors is an integer number (5107530).

Almost surely, 2^65230728 is an apocalyptic number.

It is an amenable number.

65230728 is an abundant number, since it is smaller than the sum of its proper divisors (98210232).

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

65230728 is a wasteful number, since it uses less digits than its factorization.

65230728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6077 (or 6073 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 65230728 is about 8076.5542157532. The cubic root of 65230728 is about 402.5477545798.

The spelling of 65230728 in words is "sixty-five million, two hundred thirty thousand, seven hundred twenty-eight".