69083820 has 144 divisors (see below), whose sum is σ = 233039520. Its totient is φ = 16982784.

The previous prime is 69083813. The next prime is 69083821. The reversal of 69083820 is 2838096.

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

It is not an unprimeable number, because it can be changed into a prime (69083821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 90882 + ... + 91638.

It is an arithmetic number, because the mean of its divisors is an integer number (1618330).

Almost surely, 2^69083820 is an apocalyptic number.

69083820 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69083820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116519760).

69083820 is an abundant number, since it is smaller than the sum of its proper divisors (163955700).

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

69083820 is a wasteful number, since it uses less digits than its factorization.

69083820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801 (or 780 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 69083820 is about 8311.6677026936. The cubic root of 69083820 is about 410.3226094624.

The spelling of 69083820 in words is "sixty-nine million, eighty-three thousand, eight hundred twenty".