3870217401 has 4 divisors (see below), whose sum is σ = 5160289872. Its totient is φ = 2580144932.

The previous prime is 3870217387. The next prime is 3870217423. The reversal of 3870217401 is 1047120783.

It is a happy number.

3870217401 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1047120783 = 3 ⋅349040261.

It is a cyclic number.

It is not a de Polignac number, because 3870217401 - 2¹⁰ = 3870216377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3870217601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 645036231 + ... + 645036236.

It is an arithmetic number, because the mean of its divisors is an integer number (1290072468).

Almost surely, 2^3870217401 is an apocalyptic number.

It is an amenable number.

3870217401 is a deficient number, since it is larger than the sum of its proper divisors (1290072471).

3870217401 is a wasteful number, since it uses less digits than its factorization.

3870217401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1290072470.

The product of its (nonzero) digits is 9408, while the sum is 33.

The square root of 3870217401 is about 62211.0713699740. The cubic root of 3870217401 is about 1570.0438681672.

The spelling of 3870217401 in words is "three billion, eight hundred seventy million, two hundred seventeen thousand, four hundred one".