83307644 has 18 divisors (see below), whose sum is σ = 169590960. Its totient is φ = 35703192.

The previous prime is 83307643. The next prime is 83307659. The reversal of 83307644 is 44670338.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83307643) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 212324 + ... + 212715.

It is an arithmetic number, because the mean of its divisors is an integer number (9421720).

Almost surely, 2^83307644 is an apocalyptic number.

It is an amenable number.

83307644 is an abundant number, since it is smaller than the sum of its proper divisors (86283316).

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

83307644 is a wasteful number, since it uses less digits than its factorization.

83307644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425057 (or 425048 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 83307644 is about 9127.3021205611. The cubic root of 83307644 is about 436.7453443558.

The spelling of 83307644 in words is "eighty-three million, three hundred seven thousand, six hundred forty-four".