65430636 has 24 divisors (see below), whose sum is σ = 153773760. Its totient is φ = 21652752.

The previous prime is 65430619. The next prime is 65430691. The reversal of 65430636 is 63603456.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 65430597 and 65430606.

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, 17946 + ... + 21281.

It is an arithmetic number, because the mean of its divisors is an integer number (6407240).

Almost surely, 2^65430636 is an apocalyptic number.

It is an amenable number.

65430636 is an abundant number, since it is smaller than the sum of its proper divisors (88343124).

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

65430636 is a wasteful number, since it uses less digits than its factorization.

65430636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39373 (or 39371 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 33.

The square root of 65430636 is about 8088.9205707560. The cubic root of 65430636 is about 402.9585550953.

It can be divided in two parts, 65430 and 636, that added together give a palindrome (66066).

The spelling of 65430636 in words is "sixty-five million, four hundred thirty thousand, six hundred thirty-six".