900002987 has 8 divisors (see below), whose sum is σ = 973830480. Its totient is φ = 826832160.

The previous prime is 900002959. The next prime is 900003007. The reversal of 900002987 is 789200009.

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

It is a cyclic number.

It is not a de Polignac number, because 900002987 - 2¹⁸ = 899740843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (900002387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161312 + ... + 166797.

It is an arithmetic number, because the mean of its divisors is an integer number (121728810).

Almost surely, 2^900002987 is an apocalyptic number.

900002987 is a deficient number, since it is larger than the sum of its proper divisors (73827493).

900002987 is a wasteful number, since it uses less digits than its factorization.

900002987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328333.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 900002987 is about 30000.0497832920. The cubic root of 900002987 is about 965.4904527218.

The spelling of 900002987 in words is "nine hundred million, two thousand, nine hundred eighty-seven".