65899796 has 12 divisors (see below), whose sum is σ = 115479252. Its totient is φ = 32905728.

The previous prime is 65899789. The next prime is 65899817. The reversal of 65899796 is 69799856.

It can be written as a sum of positive squares in 2 ways, for example, as 9859600 + 56040196 = 3140^2 + 7486^2 .

It is a super-2 number, since 2×65899796² = 8685566225683232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7565 + ... + 13748.

It is an arithmetic number, because the mean of its divisors is an integer number (9623271).

Almost surely, 2^65899796 is an apocalyptic number.

It is an amenable number.

65899796 is a deficient number, since it is larger than the sum of its proper divisors (49579456).

65899796 is a wasteful number, since it uses less digits than its factorization.

65899796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22090 (or 22088 counting only the distinct ones).

The product of its digits is 7348320, while the sum is 59.

The square root of 65899796 is about 8117.8689321767. The cubic root of 65899796 is about 403.9193790700.

The spelling of 65899796 in words is "sixty-five million, eight hundred ninety-nine thousand, seven hundred ninety-six".