83490075 has 48 divisors (see below), whose sum is σ = 154454400. Its totient is φ = 44215200.

The previous prime is 83490059. The next prime is 83490079. The reversal of 83490075 is 57009438.

It is not a de Polignac number, because 83490075 - 2⁴ = 83490059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (83490079) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 120480 + ... + 121170.

It is an arithmetic number, because the mean of its divisors is an integer number (3217800).

Almost surely, 2^83490075 is an apocalyptic number.

83490075 is a deficient number, since it is larger than the sum of its proper divisors (70964325).

83490075 is a wasteful number, since it uses less digits than its factorization.

83490075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 889 (or 878 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 83490075 is about 9137.2903532721. The cubic root of 83490075 is about 437.0639137667.

It can be divided in two parts, 834 and 90075, that added together give a palindrome (90909).

The spelling of 83490075 in words is "eighty-three million, four hundred ninety thousand, seventy-five".