3806556398 has 4 divisors (see below), whose sum is σ = 5709834600. Its totient is φ = 1903278198.

The previous prime is 3806556389. The next prime is 3806556409. The reversal of 3806556398 is 8936556083.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×3806556398² = 28979743222309468808, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 951639098 + ... + 951639101.

It is an arithmetic number, because the mean of its divisors is an integer number (1427458650).

Almost surely, 2^3806556398 is an apocalyptic number.

3806556398 is a deficient number, since it is larger than the sum of its proper divisors (1903278202).

3806556398 is a wasteful number, since it uses less digits than its factorization.

3806556398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1903278201.

The product of its (nonzero) digits is 4665600, while the sum is 53.

The square root of 3806556398 is about 61697.2965209984. The cubic root of 3806556398 is about 1561.3877085918.

The spelling of 3806556398 in words is "three billion, eight hundred six million, five hundred fifty-six thousand, three hundred ninety-eight".