987946 has 4 divisors (see below), whose sum is σ = 1481922. Its totient is φ = 493972.

The previous prime is 987941. The next prime is 987971. The reversal of 987946 is 649789.

987946 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 819025 + 168921 = 905^2 + 411^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (987941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246985 + ... + 246988.

2⁹⁸⁷⁹⁴⁶ is an apocalyptic number.

987946 is a deficient number, since it is larger than the sum of its proper divisors (493976).

987946 is a wasteful number, since it uses less digits than its factorization.

987946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493975.

The product of its digits is 108864, while the sum is 43.

The square root of 987946 is about 993.9547273392. The cubic root of 987946 is about 99.5965746686.

The spelling of 987946 in words is "nine hundred eighty-seven thousand, nine hundred forty-six".