3867967398 has 16 divisors (see below), whose sum is σ = 8190990000. Its totient is φ = 1213479936.

The previous prime is 3867967387. The next prime is 3867967399. The reversal of 3867967398 is 8937697683.

It is a happy number.

It is a super-2 number, since 2×3867967398² = 29922343583981780808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3867967399) 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 7 ways as a sum of consecutive naturals, for example, 18960523 + ... + 18960726.

It is an arithmetic number, because the mean of its divisors is an integer number (511936875).

Almost surely, 2^3867967398 is an apocalyptic number.

3867967398 is an abundant number, since it is smaller than the sum of its proper divisors (4323022602).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3867967398 is a wasteful number, since it uses less digits than its factorization.

3867967398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37921271.

The product of its digits is 82301184, while the sum is 66.

The square root of 3867967398 is about 62192.9851189023. The cubic root of 3867967398 is about 1569.7395538058.

The spelling of 3867967398 in words is "three billion, eight hundred sixty-seven million, nine hundred sixty-seven thousand, three hundred ninety-eight".