3897009900 has 144 divisors (see below), whose sum is σ = 14317972480. Its totient is φ = 890740800.

The previous prime is 3897009889. The next prime is 3897009911. The reversal of 3897009900 is 99007983.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3897009889) and next prime (3897009911).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 84196 + ... + 121995.

Almost surely, 2^3897009900 is an apocalyptic number.

3897009900 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3897009900 is an abundant number, since it is smaller than the sum of its proper divisors (10420962580).

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

3897009900 is a wasteful number, since it uses less digits than its factorization.

3897009900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206221 (or 206208 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The square root of 3897009900 is about 62426.0354339437. The cubic root of 3897009900 is about 1573.6585403154.

The spelling of 3897009900 in words is "three billion, eight hundred ninety-seven million, nine thousand, nine hundred".