87401286 has 24 divisors (see below), whose sum is σ = 216422544. Its totient is φ = 24971760.

The previous prime is 87401269. The next prime is 87401297. The reversal of 87401286 is 68210478.

It is a self number, because there is not a number n which added to its sum of digits gives 87401286.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 346705 + ... + 346956.

It is an arithmetic number, because the mean of its divisors is an integer number (9017606).

Almost surely, 2^87401286 is an apocalyptic number.

87401286 is an abundant number, since it is smaller than the sum of its proper divisors (129021258).

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

87401286 is a wasteful number, since it uses less digits than its factorization.

87401286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693676 (or 693673 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 87401286 is about 9348.8654926681. The cubic root of 87401286 is about 443.7849884202.

The spelling of 87401286 in words is "eighty-seven million, four hundred one thousand, two hundred eighty-six".