287987092 has 12 divisors (see below), whose sum is σ = 510050016. Its totient is φ = 142258520.

The previous prime is 287987087. The next prime is 287987101. The reversal of 287987092 is 290789782.

It is a congruent number.

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, 433384 + ... + 434047.

It is an arithmetic number, because the mean of its divisors is an integer number (42504168).

Almost surely, 2^287987092 is an apocalyptic number.

It is an amenable number.

287987092 is a deficient number, since it is larger than the sum of its proper divisors (222062924).

287987092 is a wasteful number, since it uses less digits than its factorization.

287987092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867518 (or 867516 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 52.

The square root of 287987092 is about 16970.1824386186. The cubic root of 287987092 is about 660.3755835952.

The spelling of 287987092 in words is "two hundred eighty-seven million, nine hundred eighty-seven thousand, ninety-two".