3955664 has 10 divisors (see below), whose sum is σ = 7664130. Its totient is φ = 1977824.

The previous prime is 3955663. The next prime is 3955673. The reversal of 3955664 is 4665593.

It can be written as a sum of positive squares in only one way, i.e., 2496400 + 1459264 = 1580^2 + 1208^2 .

It is a d-powerful number, because it can be written as 3⁶ + 9³ + 5⁹ + 5⁹ + 6⁴ + 6⁶ + 4 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3955663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123599 + ... + 123630.

It is an arithmetic number, because the mean of its divisors is an integer number (766413).

Almost surely, 2^3955664 is an apocalyptic number.

It is an amenable number.

3955664 is a deficient number, since it is larger than the sum of its proper divisors (3708466).

3955664 is a wasteful number, since it uses less digits than its factorization.

3955664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247237 (or 247231 counting only the distinct ones).

The product of its digits is 97200, while the sum is 38.

The square root of 3955664 is about 1988.8851148319. The cubic root of 3955664 is about 158.1514330872.

The spelling of 3955664 in words is "three million, nine hundred fifty-five thousand, six hundred sixty-four".