3898206404 has 6 divisors (see below), whose sum is σ = 6821861214. Its totient is φ = 1949103200.

The previous prime is 3898206401. The next prime is 3898206427. The reversal of 3898206404 is 4046028983.

It can be written as a sum of positive squares in only one way, i.e., 3726858304 + 171348100 = 61048^2 + 13090^2 .

It is a super-2 number, since 2×3898206404² = 30392026336373222432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3898206401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 487275797 + ... + 487275804.

It is an arithmetic number, because the mean of its divisors is an integer number (1136976869).

Almost surely, 2^3898206404 is an apocalyptic number.

It is an amenable number.

3898206404 is a deficient number, since it is larger than the sum of its proper divisors (2923654810).

3898206404 is a wasteful number, since it uses less digits than its factorization.

3898206404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974551605 (or 974551603 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 44.

The square root of 3898206404 is about 62435.6180717385. The cubic root of 3898206404 is about 1573.8195779757.

The spelling of 3898206404 in words is "three billion, eight hundred ninety-eight million, two hundred six thousand, four hundred four".