981838486 has 4 divisors (see below), whose sum is σ = 1472757732. Its totient is φ = 490919242.

The previous prime is 981838469. The next prime is 981838489. The reversal of 981838486 is 684838189.

981838486 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 (981838489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245459620 + ... + 245459623.

It is an arithmetic number, because the mean of its divisors is an integer number (368189433).

Almost surely, 2^981838486 is an apocalyptic number.

981838486 is a deficient number, since it is larger than the sum of its proper divisors (490919246).

981838486 is a wasteful number, since it uses less digits than its factorization.

981838486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490919245.

The product of its digits is 2654208, while the sum is 55.

The square root of 981838486 is about 31334.3020665851. The cubic root of 981838486 is about 993.9091387298.

The spelling of 981838486 in words is "nine hundred eighty-one million, eight hundred thirty-eight thousand, four hundred eighty-six".