65996436 has 24 divisors (see below), whose sum is σ = 167991264. Its totient is φ = 19998880.

The previous prime is 65996393. The next prime is 65996459. The reversal of 65996436 is 63469956.

It is a happy number.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 249855 + ... + 250118.

It is an arithmetic number, because the mean of its divisors is an integer number (6999636).

Almost surely, 2^65996436 is an apocalyptic number.

65996436 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

65996436 is an abundant number, since it is smaller than the sum of its proper divisors (101994828).

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

65996436 is a wasteful number, since it uses less digits than its factorization.

65996436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499991 (or 499989 counting only the distinct ones).

The product of its digits is 1049760, while the sum is 48.

The square root of 65996436 is about 8123.8190526377. The cubic root of 65996436 is about 404.1167276992.

The spelling of 65996436 in words is "sixty-five million, nine hundred ninety-six thousand, four hundred thirty-six".