73843245 has 90 divisors (see below), whose sum is σ = 156548106. Its totient is φ = 33203520.

The previous prime is 73843243. The next prime is 73843247. The reversal of 73843245 is 54234837.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (73843243) and next prime (73843247).

It can be written as a sum of positive squares in 3 ways, for example, as 5731236 + 68112009 = 2394^2 + 8253^2 .

It is not a de Polignac number, because 73843245 - 2¹ = 73843243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73843241) by changing a digit.

It is a polite number, since it can be written in 89 ways as a sum of consecutive naturals, for example, 1210515 + ... + 1210575.

Almost surely, 2^73843245 is an apocalyptic number.

It is an amenable number.

73843245 is an abundant number, since it is smaller than the sum of its proper divisors (82704861).

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

73843245 is an equidigital number, since it uses as much as digits as its factorization.

73843245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153 (or 76 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 73843245 is about 8593.2092375317. The cubic root of 73843245 is about 419.5369897626.

It can be divided in two parts, 73843 and 245, that added together give a cube (74088 = 42³).

The spelling of 73843245 in words is "seventy-three million, eight hundred forty-three thousand, two hundred forty-five".