3869898401 has 2 divisors, whose sum is σ = 3869898402. Its totient is φ = 3869898400.

The previous prime is 3869898367. The next prime is 3869898427. The reversal of 3869898401 is 1048989683.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2317459600 + 1552438801 = 48140^2 + 39401^2 .

It is a cyclic number.

It is not a de Polignac number, because 3869898401 - 2⁶ = 3869898337 is a prime.

It is a super-2 number, since 2×3869898401² = 29952227268124713602, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3869898481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1934949200 + 1934949201.

It is an arithmetic number, because the mean of its divisors is an integer number (1934949201).

Almost surely, 2^3869898401 is an apocalyptic number.

It is an amenable number.

3869898401 is a deficient number, since it is larger than the sum of its proper divisors (1).

3869898401 is an equidigital number, since it uses as much as digits as its factorization.

3869898401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2985984, while the sum is 56.

The square root of 3869898401 is about 62208.5074648155. The cubic root of 3869898401 is about 1570.0007303876. Note that the first 3 decimals are identical.

The spelling of 3869898401 in words is "three billion, eight hundred sixty-nine million, eight hundred ninety-eight thousand, four hundred one".