83449845 has 24 divisors (see below), whose sum is σ = 150005856. Its totient is φ = 44505936.

The previous prime is 83449831. The next prime is 83449859. The reversal of 83449845 is 54894438.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (83449831) and next prime (83449859).

It is not a de Polignac number, because 83449845 - 2⁵ = 83449813 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 83449845.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33127 + ... + 35556.

It is an arithmetic number, because the mean of its divisors is an integer number (6250244).

Almost surely, 2^83449845 is an apocalyptic number.

It is an amenable number.

83449845 is a deficient number, since it is larger than the sum of its proper divisors (66556011).

83449845 is an equidigital number, since it uses as much as digits as its factorization.

83449845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68703 (or 68691 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The square root of 83449845 is about 9135.0886695204. The cubic root of 83449845 is about 436.9937022030.

The spelling of 83449845 in words is "eighty-three million, four hundred forty-nine thousand, eight hundred forty-five".