65421846 has 48 divisors (see below), whose sum is σ = 166387104. Its totient is φ = 18185472.

The previous prime is 65421827. The next prime is 65421857. The reversal of 65421846 is 64812456.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 65421846.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2355 + ... + 11678.

It is an arithmetic number, because the mean of its divisors is an integer number (3466398).

Almost surely, 2^65421846 is an apocalyptic number.

65421846 is an abundant number, since it is smaller than the sum of its proper divisors (100965258).

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

65421846 is a wasteful number, since it uses less digits than its factorization.

65421846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14085 (or 14082 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 65421846 is about 8088.3772167228. The cubic root of 65421846 is about 402.9405097038.

It can be divided in two parts, 654 and 21846, that added together give a square (22500 = 150²).

The spelling of 65421846 in words is "sixty-five million, four hundred twenty-one thousand, eight hundred forty-six".