83642837 has 2 divisors, whose sum is σ = 83642838. Its totient is φ = 83642836.

The previous prime is 83642827. The next prime is 83642861. The reversal of 83642837 is 73824638.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68541841 + 15100996 = 8279^2 + 3886^2 .

It is a cyclic number.

It is not a de Polignac number, because 83642837 - 2⁴ = 83642821 is a prime.

It is a super-2 number, since 2×83642837² = 13992248362817138, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 83642794 and 83642803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83642827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41821418 + 41821419.

It is an arithmetic number, because the mean of its divisors is an integer number (41821419).

Almost surely, 2^83642837 is an apocalyptic number.

It is an amenable number.

83642837 is a deficient number, since it is larger than the sum of its proper divisors (1).

83642837 is an equidigital number, since it uses as much as digits as its factorization.

83642837 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 193536, while the sum is 41.

The square root of 83642837 is about 9145.6457945844. The cubic root of 83642837 is about 437.3303170002.

The spelling of 83642837 in words is "eighty-three million, six hundred forty-two thousand, eight hundred thirty-seven".