65850913 has 4 divisors (see below), whose sum is σ = 67975168. Its totient is φ = 63726660.

The previous prime is 65850907. The next prime is 65850919. The reversal of 65850913 is 31905856.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (65850907) and next prime (65850919).

It is a cyclic number.

It is not a de Polignac number, because 65850913 - 2⁵ = 65850881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65850919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1062081 + ... + 1062142.

It is an arithmetic number, because the mean of its divisors is an integer number (16993792).

Almost surely, 2^65850913 is an apocalyptic number.

It is an amenable number.

65850913 is a deficient number, since it is larger than the sum of its proper divisors (2124255).

65850913 is a wasteful number, since it uses less digits than its factorization.

65850913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2124254.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 65850913 is about 8114.8575465007. The cubic root of 65850913 is about 403.8194815675.

The spelling of 65850913 in words is "sixty-five million, eight hundred fifty thousand, nine hundred thirteen".