83722442 has 4 divisors (see below), whose sum is σ = 125583666. Its totient is φ = 41861220.

The previous prime is 83722427. The next prime is 83722477. The reversal of 83722442 is 24422738.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 80478841 + 3243601 = 8971^2 + 1801^2 .

It is a junction number, because it is equal to n+sod(n) for n = 83722399 and 83722408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20930609 + ... + 20930612.

Almost surely, 2^83722442 is an apocalyptic number.

83722442 is a deficient number, since it is larger than the sum of its proper divisors (41861224).

83722442 is a wasteful number, since it uses less digits than its factorization.

83722442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41861223.

The product of its digits is 21504, while the sum is 32.

The square root of 83722442 is about 9149.9968306005. The cubic root of 83722442 is about 437.4690124447.

The spelling of 83722442 in words is "eighty-three million, seven hundred twenty-two thousand, four hundred forty-two".