83099478 has 128 divisors (see below), whose sum is σ = 218972160. Its totient is φ = 20401920.

The previous prime is 83099461. The next prime is 83099491. The reversal of 83099478 is 87499038.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 933658 + ... + 933746.

It is an arithmetic number, because the mean of its divisors is an integer number (1710720).

Almost surely, 2^83099478 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83099478, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109486080).

83099478 is an abundant number, since it is smaller than the sum of its proper divisors (135872682).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83099478 is a wasteful number, since it uses less digits than its factorization.

83099478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202.

The product of its (nonzero) digits is 435456, while the sum is 48.

The square root of 83099478 is about 9115.8915087884. The cubic root of 83099478 is about 436.3812666725.

The spelling of 83099478 in words is "eighty-three million, ninety-nine thousand, four hundred seventy-eight".