83456645 has 16 divisors (see below), whose sum is σ = 108272640. Its totient is φ = 61539264.

The previous prime is 83456641. The next prime is 83456651. The reversal of 83456645 is 54665438.

It is a cyclic number.

It is not a de Polignac number, because 83456645 - 2² = 83456641 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83456641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8357 + ... + 15386.

It is an arithmetic number, because the mean of its divisors is an integer number (6767040).

Almost surely, 2^83456645 is an apocalyptic number.

It is an amenable number.

83456645 is a deficient number, since it is larger than the sum of its proper divisors (24815995).

83456645 is a wasteful number, since it uses less digits than its factorization.

83456645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23804.

The product of its digits is 345600, while the sum is 41.

The square root of 83456645 is about 9135.4608531809. The cubic root of 83456645 is about 437.0055715139.

The spelling of 83456645 in words is "eighty-three million, four hundred fifty-six thousand, six hundred forty-five".