919964 has 12 divisors (see below), whose sum is σ = 1617000. Its totient is φ = 457968.

The previous prime is 919951. The next prime is 919969. The reversal of 919964 is 469919.

It is a super-2 number, since 2×919964² = 1692667522592, which contains 22 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 919964.

It is not an unprimeable number, because it can be changed into a prime (919969) 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, 1067 + ... + 1725.

It is an arithmetic number, because the mean of its divisors is an integer number (134750).

2⁹¹⁹⁹⁶⁴ is an apocalyptic number.

It is an amenable number.

919964 is a deficient number, since it is larger than the sum of its proper divisors (697036).

919964 is a wasteful number, since it uses less digits than its factorization.

919964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012 (or 1010 counting only the distinct ones).

The product of its digits is 17496, while the sum is 38.

The square root of 919964 is about 959.1475381817. The cubic root of 919964 is about 97.2576140112.

The spelling of 919964 in words is "nine hundred nineteen thousand, nine hundred sixty-four".