83740555 has 16 divisors (see below), whose sum is σ = 107007264. Its totient is φ = 62691840.

The previous prime is 83740519. The next prime is 83740633. The reversal of 83740555 is 55504738.

It is not a de Polignac number, because 83740555 - 2⁷ = 83740427 is a prime.

It is a Duffinian number.

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, 12664 + ... + 18106.

It is an arithmetic number, because the mean of its divisors is an integer number (6687954).

Almost surely, 2^83740555 is an apocalyptic number.

83740555 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

83740555 is a deficient number, since it is larger than the sum of its proper divisors (23266709).

83740555 is a wasteful number, since it uses less digits than its factorization.

83740555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5646.

The product of its (nonzero) digits is 84000, while the sum is 37.

The square root of 83740555 is about 9150.9865588362. The cubic root of 83740555 is about 437.5005583666.

The spelling of 83740555 in words is "eighty-three million, seven hundred forty thousand, five hundred fifty-five".