65993926 has 4 divisors (see below), whose sum is σ = 98990892. Its totient is φ = 32996962.

The previous prime is 65993849. The next prime is 65993927. The reversal of 65993926 is 62939956.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 65993926.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65993927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16498480 + ... + 16498483.

It is an arithmetic number, because the mean of its divisors is an integer number (24747723).

Almost surely, 2^65993926 is an apocalyptic number.

65993926 is a deficient number, since it is larger than the sum of its proper divisors (32996966).

65993926 is a wasteful number, since it uses less digits than its factorization.

65993926 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32996965.

The product of its digits is 787320, while the sum is 49.

The square root of 65993926 is about 8123.6645671766. The cubic root of 65993926 is about 404.1116044638. Note that the first 3 decimals are identical.

The spelling of 65993926 in words is "sixty-five million, nine hundred ninety-three thousand, nine hundred twenty-six".