83553372 has 72 divisors (see below), whose sum is σ = 243315072. Its totient is φ = 23680800.

The previous prime is 83553341. The next prime is 83553373. The reversal of 83553372 is 27335538.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83553373) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31747 + ... + 34277.

It is an arithmetic number, because the mean of its divisors is an integer number (3379376).

Almost surely, 2^83553372 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 83553372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121657536).

83553372 is an abundant number, since it is smaller than the sum of its proper divisors (159761700).

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

83553372 is a wasteful number, since it uses less digits than its factorization.

83553372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2679 (or 2674 counting only the distinct ones).

The product of its digits is 75600, while the sum is 36.

The square root of 83553372 is about 9140.7533606372. The cubic root of 83553372 is about 437.1743374557.

The spelling of 83553372 in words is "eighty-three million, five hundred fifty-three thousand, three hundred seventy-two".