3867411021 has 16 divisors (see below), whose sum is σ = 5190701184. Its totient is φ = 2561223104.

The previous prime is 3867411017. The next prime is 3867411127. The reversal of 3867411021 is 1201147683.

It is a cyclic number.

It is not a de Polignac number, because 3867411021 - 2² = 3867411017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3867421021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 831715 + ... + 836351.

It is an arithmetic number, because the mean of its divisors is an integer number (324418824).

Almost surely, 2^3867411021 is an apocalyptic number.

It is an amenable number.

3867411021 is a deficient number, since it is larger than the sum of its proper divisors (1323290163).

3867411021 is a wasteful number, since it uses less digits than its factorization.

3867411021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6420.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 3867411021 is about 62188.5119696556. The cubic root of 3867411021 is about 1569.6642852584.

The spelling of 3867411021 in words is "three billion, eight hundred sixty-seven million, four hundred eleven thousand, twenty-one".