964855 has 4 divisors (see below), whose sum is σ = 1157832. Its totient is φ = 771880.

The previous prime is 964829. The next prime is 964861. The reversal of 964855 is 558469.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 964855 - 2⁵ = 964823 is a prime.

It is a Duffinian number.

964855 is a lucky number.

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, 96481 + ... + 96490.

It is an arithmetic number, because the mean of its divisors is an integer number (289458).

2⁹⁶⁴⁸⁵⁵ is an apocalyptic number.

964855 is a deficient number, since it is larger than the sum of its proper divisors (192977).

964855 is a wasteful number, since it uses less digits than its factorization.

964855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192976.

The product of its digits is 43200, while the sum is 37.

The square root of 964855 is about 982.2703293900. The cubic root of 964855 is about 98.8145014693.

The spelling of 964855 in words is "nine hundred sixty-four thousand, eight hundred fifty-five".