287115396 has 12 divisors (see below), whose sum is σ = 669935952. Its totient is φ = 95705128.

The previous prime is 287115383. The next prime is 287115419. The reversal of 287115396 is 693511782.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11963130 + ... + 11963153.

It is an arithmetic number, because the mean of its divisors is an integer number (55827996).

Almost surely, 2^287115396 is an apocalyptic number.

It is an amenable number.

287115396 is an abundant number, since it is smaller than the sum of its proper divisors (382820556).

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

287115396 is a wasteful number, since it uses less digits than its factorization.

287115396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23926290 (or 23926288 counting only the distinct ones).

The product of its digits is 90720, while the sum is 42.

The square root of 287115396 is about 16944.4798090706. The cubic root of 287115396 is about 659.7086225292.

The spelling of 287115396 in words is "two hundred eighty-seven million, one hundred fifteen thousand, three hundred ninety-six".