83823402 has 64 divisors (see below), whose sum is σ = 191761920. Its totient is φ = 24214464.

The previous prime is 83823401. The next prime is 83823437. The reversal of 83823402 is 20432838.

It is a self number, because there is not a number n which added to its sum of digits gives 83823402.

It is not an unprimeable number, because it can be changed into a prime (83823401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 241393 + ... + 241739.

It is an arithmetic number, because the mean of its divisors is an integer number (2996280).

Almost surely, 2^83823402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83823402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95880960).

83823402 is an abundant number, since it is smaller than the sum of its proper divisors (107938518).

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

83823402 is a wasteful number, since it uses less digits than its factorization.

83823402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547.

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 83823402 is about 9155.5121101990. The cubic root of 83823402 is about 437.6447882139.

The spelling of 83823402 in words is "eighty-three million, eight hundred twenty-three thousand, four hundred two".