3639900001 has 4 divisors (see below), whose sum is σ = 3641943232. Its totient is φ = 3637856772.

The previous prime is 3639899993. The next prime is 3639900059. The reversal of 3639900001 is 1000099363.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3639900001 - 2³ = 3639899993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3639900701) 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, 1018941 + ... + 1022506.

It is an arithmetic number, because the mean of its divisors is an integer number (910485808).

Almost surely, 2^3639900001 is an apocalyptic number.

It is an amenable number.

3639900001 is a deficient number, since it is larger than the sum of its proper divisors (2043231).

3639900001 is a wasteful number, since it uses less digits than its factorization.

3639900001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2043230.

The product of its (nonzero) digits is 4374, while the sum is 31.

The square root of 3639900001 is about 60331.5837766588. The cubic root of 3639900001 is about 1538.2602494468.

Adding to 3639900001 its reverse (1000099363), we get a palindrome (4639999364).

The spelling of 3639900001 in words is "three billion, six hundred thirty-nine million, nine hundred thousand, one".