286887013 has 24 divisors (see below), whose sum is σ = 348872832. Its totient is φ = 234993024.

The previous prime is 286887001. The next prime is 286887037. The reversal of 286887013 is 310788682.

It is a happy number.

It is not a de Polignac number, because 286887013 - 2¹³ = 286878821 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (286887043) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97581 + ... + 100477.

It is an arithmetic number, because the mean of its divisors is an integer number (14536368).

Almost surely, 2^286887013 is an apocalyptic number.

It is an amenable number.

286887013 is a deficient number, since it is larger than the sum of its proper divisors (61985819).

286887013 is a wasteful number, since it uses less digits than its factorization.

286887013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3001 (or 2994 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 43.

The square root of 286887013 is about 16937.7393119625. The cubic root of 286887013 is about 659.5336566412.

The spelling of 286887013 in words is "two hundred eighty-six million, eight hundred eighty-seven thousand, thirteen".