287987974 has 8 divisors (see below), whose sum is σ = 435135528. Its totient is φ = 142942800.

The previous prime is 287987971. The next prime is 287988017. The reversal of 287987974 is 479789782.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (287987971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 525252 + ... + 525799.

It is an arithmetic number, because the mean of its divisors is an integer number (54391941).

Almost surely, 2^287987974 is an apocalyptic number.

287987974 is a deficient number, since it is larger than the sum of its proper divisors (147147554).

287987974 is a wasteful number, since it uses less digits than its factorization.

287987974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051190.

The product of its digits is 14224896, while the sum is 61.

The square root of 287987974 is about 16970.2084253553. The cubic root of 287987974 is about 660.3762577581.

The spelling of 287987974 in words is "two hundred eighty-seven million, nine hundred eighty-seven thousand, nine hundred seventy-four".