3633970989 has 32 divisors (see below), whose sum is σ = 5631091200. Its totient is φ = 2061322560.

The previous prime is 3633970987. The next prime is 3633971057. The reversal of 3633970989 is 9890793363.

It is not a de Polignac number, because 3633970989 - 2¹ = 3633970987 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3633970981) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17127 + ... + 86955.

It is an arithmetic number, because the mean of its divisors is an integer number (175971600).

Almost surely, 2^3633970989 is an apocalyptic number.

It is an amenable number.

3633970989 is a deficient number, since it is larger than the sum of its proper divisors (1997120211).

3633970989 is a wasteful number, since it uses less digits than its factorization.

3633970989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69945.

The product of its (nonzero) digits is 6613488, while the sum is 57.

The square root of 3633970989 is about 60282.4268672057. The cubic root of 3633970989 is about 1537.4245744743.

The spelling of 3633970989 in words is "three billion, six hundred thirty-three million, nine hundred seventy thousand, nine hundred eighty-nine".