83722869 has 8 divisors (see below), whose sum is σ = 124033920. Its totient is φ = 55815228.

The previous prime is 83722867. The next prime is 83722879. The reversal of 83722869 is 96822738.

It is not a de Polignac number, because 83722869 - 2¹ = 83722867 is a prime.

It is a super-2 number, since 2×83722869² = 14019037587182322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83722867) 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, 1550397 + ... + 1550450.

It is an arithmetic number, because the mean of its divisors is an integer number (15504240).

Almost surely, 2^83722869 is an apocalyptic number.

It is an amenable number.

83722869 is a deficient number, since it is larger than the sum of its proper divisors (40311051).

83722869 is a wasteful number, since it uses less digits than its factorization.

83722869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3100856 (or 3100850 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 83722869 is about 9150.0201639122. The cubic root of 83722869 is about 437.4697561678.

The spelling of 83722869 in words is "eighty-three million, seven hundred twenty-two thousand, eight hundred sixty-nine".