3897478801 has 2 divisors, whose sum is σ = 3897478802. Its totient is φ = 3897478800.

The previous prime is 3897478787. The next prime is 3897478829. The reversal of 3897478801 is 1088747983.

It is a happy number.

3897478801 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2532102400 + 1365376401 = 50320^2 + 36951^2 .

It is a cyclic number.

It is not a de Polignac number, because 3897478801 - 2⁹ = 3897478289 is a prime.

It is not a weakly prime, because it can be changed into another prime (3897478831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1948739400 + 1948739401.

It is an arithmetic number, because the mean of its divisors is an integer number (1948739401).

Almost surely, 2^3897478801 is an apocalyptic number.

It is an amenable number.

3897478801 is a deficient number, since it is larger than the sum of its proper divisors (1).

3897478801 is an equidigital number, since it uses as much as digits as its factorization.

3897478801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2709504, while the sum is 55.

The square root of 3897478801 is about 62429.7909735408. The cubic root of 3897478801 is about 1573.7216537014.

The spelling of 3897478801 in words is "three billion, eight hundred ninety-seven million, four hundred seventy-eight thousand, eight hundred one".