4087631 has 2 divisors, whose sum is σ = 4087632. Its totient is φ = 4087630.

The previous prime is 4087627. The next prime is 4087639. The reversal of 4087631 is 1367804.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4087631 - 2² = 4087627 is a prime.

It is a super-3 number, since 3×4087631³ (a number of 21 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 4087594 and 4087603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4087639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2043815 + 2043816.

It is an arithmetic number, because the mean of its divisors is an integer number (2043816).

Almost surely, 2^4087631 is an apocalyptic number.

4087631 is a deficient number, since it is larger than the sum of its proper divisors (1).

4087631 is an equidigital number, since it uses as much as digits as its factorization.

4087631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 4087631 is about 2021.7890592245. The cubic root of 4087631 is about 159.8909543442.

The spelling of 4087631 in words is "four million, eighty-seven thousand, six hundred thirty-one".