3897748100 has 36 divisors (see below), whose sum is σ = 8955653364. Its totient is φ = 1467386880.

The previous prime is 3897748087. The next prime is 3897748121. The reversal of 3897748100 is 18477983.

It can be written as a sum of positive squares in 6 ways, for example, as 85673536 + 3812074564 = 9256^2 + 61742^2 .

It is a super-2 number, since 2×3897748100² = 30384880502107220000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1144697 + ... + 1148096.

It is an arithmetic number, because the mean of its divisors is an integer number (248768149).

Almost surely, 2^3897748100 is an apocalyptic number.

It is an amenable number.

3897748100 is an abundant number, since it is smaller than the sum of its proper divisors (5057905264).

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

3897748100 is a wasteful number, since it uses less digits than its factorization.

3897748100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2292824 (or 2292817 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 47.

The square root of 3897748100 is about 62431.9477511314. The cubic root of 3897748100 is about 1573.7578986629.

The spelling of 3897748100 in words is "three billion, eight hundred ninety-seven million, seven hundred forty-eight thousand, one hundred".