986438 has 4 divisors (see below), whose sum is σ = 1479660. Its totient is φ = 493218.

The previous prime is 986437. The next prime is 986471. The reversal of 986438 is 834689.

986438 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 is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (986437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246608 + ... + 246611.

It is an arithmetic number, because the mean of its divisors is an integer number (369915).

2⁹⁸⁶⁴³⁸ is an apocalyptic number.

986438 is a deficient number, since it is larger than the sum of its proper divisors (493222).

986438 is a wasteful number, since it uses less digits than its factorization.

986438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493221.

The product of its digits is 41472, while the sum is 38.

The square root of 986438 is about 993.1958517835. The cubic root of 986438 is about 99.5458741523.

The spelling of 986438 in words is "nine hundred eighty-six thousand, four hundred thirty-eight".