84744045 has 12 divisors (see below), whose sum is σ = 146889756. Its totient is φ = 45196800.

The previous prime is 84744041. The next prime is 84744053. The reversal of 84744045 is 54044748.

It can be written as a sum of positive squares in 2 ways, for example, as 37711881 + 47032164 = 6141^2 + 6858^2 .

It is not a de Polignac number, because 84744045 - 2² = 84744041 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84744041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 941556 + ... + 941645.

It is an arithmetic number, because the mean of its divisors is an integer number (12240813).

Almost surely, 2^84744045 is an apocalyptic number.

It is an amenable number.

84744045 is a deficient number, since it is larger than the sum of its proper divisors (62145711).

84744045 is a wasteful number, since it uses less digits than its factorization.

84744045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1883212 (or 1883209 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 36.

The square root of 84744045 is about 9205.6528828758. The cubic root of 84744045 is about 439.2411938678.

The spelling of 84744045 in words is "eighty-four million, seven hundred forty-four thousand, forty-five".