65090799 has 12 divisors (see below), whose sum is σ = 94653000. Its totient is φ = 43101744.

The previous prime is 65090791. The next prime is 65090833. The reversal of 65090799 is 99709056.

It is not a de Polignac number, because 65090799 - 2³ = 65090791 is a prime.

It is a super-2 number, since 2×65090799² = 8473624228916802, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65090791) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22929 + ... + 25610.

It is an arithmetic number, because the mean of its divisors is an integer number (7887750).

Almost surely, 2^65090799 is an apocalyptic number.

65090799 is a deficient number, since it is larger than the sum of its proper divisors (29562201).

65090799 is a wasteful number, since it uses less digits than its factorization.

65090799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48694 (or 48691 counting only the distinct ones).

The product of its (nonzero) digits is 153090, while the sum is 45.

The square root of 65090799 is about 8067.8868980669. The cubic root of 65090799 is about 402.2597081751.

The spelling of 65090799 in words is "sixty-five million, ninety thousand, seven hundred ninety-nine".