65898774 has 12 divisors (see below), whose sum is σ = 142780716. Its totient is φ = 21966252.

The previous prime is 65898757. The next prime is 65898797. The reversal of 65898774 is 47789856.

It is a self number, because there is not a number n which added to its sum of digits gives 65898774.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1830504 + ... + 1830539.

It is an arithmetic number, because the mean of its divisors is an integer number (11898393).

Almost surely, 2^65898774 is an apocalyptic number.

65898774 is an abundant number, since it is smaller than the sum of its proper divisors (76881942).

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

65898774 is a wasteful number, since it uses less digits than its factorization.

65898774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3661051 (or 3661048 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 54.

The square root of 65898774 is about 8117.8059843778. The cubic root of 65898774 is about 403.9172910122.

The spelling of 65898774 in words is "sixty-five million, eight hundred ninety-eight thousand, seven hundred seventy-four".