83147645 has 16 divisors (see below), whose sum is σ = 118990080. Its totient is φ = 54536064.

The previous prime is 83147639. The next prime is 83147683. The reversal of 83147645 is 54674138.

It is a cyclic number.

It is not a de Polignac number, because 83147645 - 2¹⁰ = 83146621 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 83147599 and 83147608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50840 + ... + 52449.

It is an arithmetic number, because the mean of its divisors is an integer number (7436880).

Almost surely, 2^83147645 is an apocalyptic number.

It is an amenable number.

83147645 is a deficient number, since it is larger than the sum of its proper divisors (35842435).

83147645 is a wasteful number, since it uses less digits than its factorization.

83147645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103324.

The product of its digits is 80640, while the sum is 38.

The square root of 83147645 is about 9118.5330508805. The cubic root of 83147645 is about 436.4655636988.

The spelling of 83147645 in words is "eighty-three million, one hundred forty-seven thousand, six hundred forty-five".