83251644 has 24 divisors (see below), whose sum is σ = 222004608. Its totient is φ = 23786160.

The previous prime is 83251643. The next prime is 83251657. The reversal of 83251644 is 44615238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83251643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 495462 + ... + 495629.

It is an arithmetic number, because the mean of its divisors is an integer number (9250192).

Almost surely, 2^83251644 is an apocalyptic number.

83251644 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

83251644 is an abundant number, since it is smaller than the sum of its proper divisors (138752964).

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

83251644 is a wasteful number, since it uses less digits than its factorization.

83251644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991105 (or 991103 counting only the distinct ones).

The product of its digits is 23040, while the sum is 33.

The square root of 83251644 is about 9124.2338856476. The cubic root of 83251644 is about 436.6474612949.

The spelling of 83251644 in words is "eighty-three million, two hundred fifty-one thousand, six hundred forty-four".