6663632 has 10 divisors (see below), whose sum is σ = 12910818. Its totient is φ = 3331808.

The previous prime is 6663617. The next prime is 6663647. The reversal of 6663632 is 2363666.

It is an interprime number because it is at equal distance from previous prime (6663617) and next prime (6663647).

It can be written as a sum of positive squares in only one way, i.e., 4910656 + 1752976 = 2216^2 + 1324^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 208223 + ... + 208254.

Almost surely, 2^6663632 is an apocalyptic number.

It is an amenable number.

6663632 is a deficient number, since it is larger than the sum of its proper divisors (6247186).

6663632 is a wasteful number, since it uses less digits than its factorization.

6663632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416485 (or 416479 counting only the distinct ones).

The product of its digits is 23328, while the sum is 32.

The square root of 6663632 is about 2581.4011699075. The cubic root of 6663632 is about 188.1786441353.

The spelling of 6663632 in words is "six million, six hundred sixty-three thousand, six hundred thirty-two".