83103720 has 256 divisors, whose sum is σ = 309657600. Its totient is φ = 17418240.

The previous prime is 83103697. The next prime is 83103721. The reversal of 83103720 is 2730138.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (83103721) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 654297 + ... + 654423.

It is an arithmetic number, because the mean of its divisors is an integer number (1209600).

Almost surely, 2^83103720 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83103720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154828800).

83103720 is an abundant number, since it is smaller than the sum of its proper divisors (226553880).

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

83103720 is a wasteful number, since it uses less digits than its factorization.

83103720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208 (or 204 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 83103720 is about 9116.1241764250. The cubic root of 83103720 is about 436.3886919010.

Adding to 83103720 its reverse (2730138), we get a palindrome (85833858).

The spelling of 83103720 in words is "eighty-three million, one hundred three thousand, seven hundred twenty".