83318642 has 32 divisors (see below), whose sum is σ = 141740928. Its totient is φ = 36400000.

The previous prime is 83318633. The next prime is 83318659. The reversal of 83318642 is 24681338.

It is a happy number.

It is a super-2 number, since 2×83318642² = 13883992209448328, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63392 + ... + 64692.

It is an arithmetic number, because the mean of its divisors is an integer number (4429404).

Almost surely, 2^83318642 is an apocalyptic number.

83318642 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

83318642 is a deficient number, since it is larger than the sum of its proper divisors (58422286).

83318642 is a wasteful number, since it uses less digits than its factorization.

83318642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1426.

The product of its digits is 27648, while the sum is 35.

The square root of 83318642 is about 9127.9045788176. The cubic root of 83318642 is about 436.7645627360.

The spelling of 83318642 in words is "eighty-three million, three hundred eighteen thousand, six hundred forty-two".