83449810 has 16 divisors (see below), whose sum is σ = 150999552. Its totient is φ = 33204400.

The previous prime is 83449781. The next prime is 83449813. The reversal of 83449810 is 1894438.

It is a super-2 number, since 2×83449810² = 13927741578072200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 83449810.

It is not an unprimeable number, because it can be changed into a prime (83449813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19936 + ... + 23755.

It is an arithmetic number, because the mean of its divisors is an integer number (9437472).

Almost surely, 2^83449810 is an apocalyptic number.

83449810 is a deficient number, since it is larger than the sum of its proper divisors (67549742).

83449810 is a wasteful number, since it uses less digits than its factorization.

83449810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43889.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 83449810 is about 9135.0867538300. The cubic root of 83449810 is about 436.9936411093.

The spelling of 83449810 in words is "eighty-three million, four hundred forty-nine thousand, eight hundred ten".