83672345 has 4 divisors (see below), whose sum is σ = 100406820. Its totient is φ = 66937872.

The previous prime is 83672341. The next prime is 83672357. The reversal of 83672345 is 54327638.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 55071241 + 28601104 = 7421^2 + 5348^2 .

It is a cyclic number.

It is not a de Polignac number, because 83672345 - 2² = 83672341 is a prime.

It is a super-2 number, since 2×83672345² = 14002122635598050, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 83672299 and 83672308.

It is not an unprimeable number, because it can be changed into a prime (83672341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8367230 + ... + 8367239.

It is an arithmetic number, because the mean of its divisors is an integer number (25101705).

Almost surely, 2^83672345 is an apocalyptic number.

It is an amenable number.

83672345 is a deficient number, since it is larger than the sum of its proper divisors (16734475).

83672345 is a wasteful number, since it uses less digits than its factorization.

83672345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16734474.

The product of its digits is 120960, while the sum is 38.

The square root of 83672345 is about 9147.2588790304. The cubic root of 83672345 is about 437.3817389200.

The spelling of 83672345 in words is "eighty-three million, six hundred seventy-two thousand, three hundred forty-five".