3897901 has 6 divisors (see below), whose sum is σ = 4534350. Its totient is φ = 3341016.

The previous prime is 3897899. The next prime is 3897937. The reversal of 3897901 is 1097983.

It can be written as a sum of positive squares in only one way, i.e., 3896676 + 1225 = 1974^2 + 35^2 .

It is not a de Polignac number, because 3897901 - 2¹ = 3897899 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3897941) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39726 + ... + 39823.

It is an arithmetic number, because the mean of its divisors is an integer number (755725).

Almost surely, 2^3897901 is an apocalyptic number.

It is an amenable number.

3897901 is a deficient number, since it is larger than the sum of its proper divisors (636449).

3897901 is an equidigital number, since it uses as much as digits as its factorization.

3897901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79563 (or 79556 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 3897901 is about 1974.3102593058. The cubic root of 3897901 is about 157.3778476736.

The spelling of 3897901 in words is "three million, eight hundred ninety-seven thousand, nine hundred one".