545438986 has 16 divisors (see below), whose sum is σ = 852922368. Its totient is φ = 261306000.

The previous prime is 545438983. The next prime is 545439001. The reversal of 545438986 is 689834545.

It is not an unprimeable number, because it can be changed into a prime (545438981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37290 + ... + 49813.

It is an arithmetic number, because the mean of its divisors is an integer number (53307648).

Almost surely, 2^545438986 is an apocalyptic number.

545438986 is a deficient number, since it is larger than the sum of its proper divisors (307483382).

545438986 is a wasteful number, since it uses less digits than its factorization.

545438986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87237.

The product of its digits is 4147200, while the sum is 52.

The square root of 545438986 is about 23354.6352144494. The cubic root of 545438986 is about 817.0501715285.

The spelling of 545438986 in words is "five hundred forty-five million, four hundred thirty-eight thousand, nine hundred eighty-six".