987406 has 8 divisors (see below), whose sum is σ = 1692720. Its totient is φ = 423168.

The previous prime is 987391. The next prime is 987433. The reversal of 987406 is 604789.

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

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, 35251 + ... + 35278.

It is an arithmetic number, because the mean of its divisors is an integer number (211590).

2⁹⁸⁷⁴⁰⁶ is an apocalyptic number.

987406 is a deficient number, since it is larger than the sum of its proper divisors (705314).

987406 is a wasteful number, since it uses less digits than its factorization.

987406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70538.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 987406 is about 993.6830480591. The cubic root of 987406 is about 99.5784252447.

The spelling of 987406 in words is "nine hundred eighty-seven thousand, four hundred six".