3867602421 has 16 divisors (see below), whose sum is σ = 5382941184. Its totient is φ = 2465413104.

The previous prime is 3867602369. The next prime is 3867602461. The reversal of 3867602421 is 1242067683.

It is a happy number.

It is not a de Polignac number, because 3867602421 - 2⁷ = 3867602293 is a prime.

It is a super-2 number, since 2×3867602421² = 29916696973850122482, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3867602421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3867602461) 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, 222570 + ... + 239316.

It is an arithmetic number, because the mean of its divisors is an integer number (336433824).

Almost surely, 2^3867602421 is an apocalyptic number.

It is an amenable number.

3867602421 is a deficient number, since it is larger than the sum of its proper divisors (1515338763).

3867602421 is a wasteful number, since it uses less digits than its factorization.

3867602421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20120.

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 3867602421 is about 62190.0508200468. The cubic root of 3867602421 is about 1569.6901793071.

The spelling of 3867602421 in words is "three billion, eight hundred sixty-seven million, six hundred two thousand, four hundred twenty-one".