3912211386 has 20 divisors (see below), whose sum is σ = 8766251802. Its totient is φ = 1304070408.

The previous prime is 3912211367. The next prime is 3912211481. The reversal of 3912211386 is 6831122193.

It can be written as a sum of positive squares in only one way, i.e., 3652389225 + 259822161 = 60435^2 + 16119^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3912211386.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 12074565 + ... + 12074888.

Almost surely, 2^3912211386 is an apocalyptic number.

3912211386 is an abundant number, since it is smaller than the sum of its proper divisors (4854040416).

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

3912211386 is a wasteful number, since it uses less digits than its factorization.

3912211386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24149467 (or 24149458 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 3912211386 is about 62547.6729063520. The cubic root of 3912211386 is about 1575.7020652352.

The spelling of 3912211386 in words is "three billion, nine hundred twelve million, two hundred eleven thousand, three hundred eighty-six".