4086937621 has 8 divisors (see below), whose sum is σ = 4407535160. Its totient is φ = 3767228352.

The previous prime is 4086937619. The next prime is 4086937651. The reversal of 4086937621 is 1267396804.

It can be written as a sum of positive squares in 4 ways, for example, as 336722500 + 3750215121 = 18350^2 + 61239^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4086937621 - 2¹ = 4086937619 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4086937651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212490 + ... + 230923.

It is an arithmetic number, because the mean of its divisors is an integer number (550941895).

Almost surely, 2^4086937621 is an apocalyptic number.

It is an amenable number.

4086937621 is a deficient number, since it is larger than the sum of its proper divisors (320597539).

4086937621 is a wasteful number, since it uses less digits than its factorization.

4086937621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444135.

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 4086937621 is about 63929.1609596122. The cubic root of 4086937621 is about 1598.8191314172.

The spelling of 4086937621 in words is "four billion, eighty-six million, nine hundred thirty-seven thousand, six hundred twenty-one".