83439755 has 32 divisors (see below), whose sum is σ = 120434688. Its totient is φ = 54288000.

The previous prime is 83439749. The next prime is 83439767. The reversal of 83439755 is 55793438.

It is not a de Polignac number, because 83439755 - 2¹⁶ = 83374219 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 (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56780 + ... + 58230.

It is an arithmetic number, because the mean of its divisors is an integer number (3763584).

Almost surely, 2^83439755 is an apocalyptic number.

83439755 is a deficient number, since it is larger than the sum of its proper divisors (36994933).

83439755 is a wasteful number, since it uses less digits than its factorization.

83439755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1547.

The product of its digits is 453600, while the sum is 44.

The square root of 83439755 is about 9134.5363867029. The cubic root of 83439755 is about 436.9760890519.

The spelling of 83439755 in words is "eighty-three million, four hundred thirty-nine thousand, seven hundred fifty-five".