7436845 has 16 divisors (see below), whose sum is σ = 9681840. Its totient is φ = 5483712.

The previous prime is 7436839. The next prime is 7436861. The reversal of 7436845 is 5486347.

7436845 = 90² + 91² + ... + 284².

It can be written as a sum of positive squares in 8 ways, for example, as 3052009 + 4384836 = 1747^2 + 2094^2 .

It is not a de Polignac number, because 7436845 - 2¹³ = 7428653 is a prime.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10647 + ... + 11323.

It is an arithmetic number, because the mean of its divisors is an integer number (605115).

Almost surely, 2^7436845 is an apocalyptic number.

It is an amenable number.

7436845 is a deficient number, since it is larger than the sum of its proper divisors (2244995).

7436845 is an equidigital number, since it uses as much as digits as its factorization.

7436845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721 (or 695 counting only the distinct ones).

The product of its digits is 80640, while the sum is 37.

The square root of 7436845 is about 2727.0579385118. The cubic root of 7436845 is about 195.1924026902.

It can be divided in two parts, 7436 and 845, that added together give a square (8281 = 91²).

The spelling of 7436845 in words is "seven million, four hundred thirty-six thousand, eight hundred forty-five".