287985495 has 24 divisors (see below), whose sum is σ = 536007024. Its totient is φ = 131650176.

The previous prime is 287985493. The next prime is 287985547. The reversal of 287985495 is 594589782.

It is a happy number.

It is not a de Polignac number, because 287985495 - 2¹ = 287985493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (287985493) 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, 195174 + ... + 196643.

It is an arithmetic number, because the mean of its divisors is an integer number (22333626).

Almost surely, 2^287985495 is an apocalyptic number.

287985495 is a deficient number, since it is larger than the sum of its proper divisors (248021529).

287985495 is a wasteful number, since it uses less digits than its factorization.

287985495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391839 (or 391832 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 57.

The square root of 287985495 is about 16970.1353854352. The cubic root of 287985495 is about 660.3743629135.

The spelling of 287985495 in words is "two hundred eighty-seven million, nine hundred eighty-five thousand, four hundred ninety-five".