2663964 has 18 divisors (see below), whose sum is σ = 6734000. Its totient is φ = 887976.

The previous prime is 2663953. The next prime is 2663977. The reversal of 2663964 is 4693662.

2663964 is a `hidden beast` number, since 266 + 396 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 73999 = 2663964 / (2 + 6 + 6 + 3 + 9 + 6 + 4).

It is a nude number because it is divisible by every one of its digits.

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, 36964 + ... + 37035.

2^2663964 is an apocalyptic number.

It is an amenable number.

2663964 is an abundant number, since it is smaller than the sum of its proper divisors (4070036).

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

2663964 is a wasteful number, since it uses less digits than its factorization.

2663964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74009 (or 74004 counting only the distinct ones).

The product of its digits is 46656, while the sum is 36.

The square root of 2663964 is about 1632.1654327917. The cubic root of 2663964 is about 138.6253909243.

The spelling of 2663964 in words is "two million, six hundred sixty-three thousand, nine hundred sixty-four".