83805402 has 32 divisors (see below), whose sum is σ = 171720000. Its totient is φ = 27256320.

The previous prime is 83805383. The next prime is 83805419. The reversal of 83805402 is 20450838.

It is a self number, because there is not a number n which added to its sum of digits gives 83805402.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66474 + ... + 67722.

It is an arithmetic number, because the mean of its divisors is an integer number (5366250).

Almost surely, 2^83805402 is an apocalyptic number.

83805402 is an abundant number, since it is smaller than the sum of its proper divisors (87914598).

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

83805402 is a wasteful number, since it uses less digits than its factorization.

83805402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1518.

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 83805402 is about 9154.5290430475. The cubic root of 83805402 is about 437.6134597705.

The spelling of 83805402 in words is "eighty-three million, eight hundred five thousand, four hundred two".