65393930 has 48 divisors (see below), whose sum is σ = 137685096. Its totient is φ = 22296960.

The previous prime is 65393929. The next prime is 65393941. The reversal of 65393930 is 3939356.

It can be written as a sum of positive squares in 4 ways, for example, as 13712209 + 51681721 = 3703^2 + 7189^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 155120 + ... + 155540.

Almost surely, 2^65393930 is an apocalyptic number.

65393930 is an abundant number, since it is smaller than the sum of its proper divisors (72291166).

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

65393930 is a wasteful number, since it uses less digits than its factorization.

65393930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759 (or 752 counting only the distinct ones).

The product of its (nonzero) digits is 65610, while the sum is 38.

The square root of 65393930 is about 8086.6513465093. The cubic root of 65393930 is about 402.8831889551.

The spelling of 65393930 in words is "sixty-five million, three hundred ninety-three thousand, nine hundred thirty".