83611427 has 2 divisors, whose sum is σ = 83611428. Its totient is φ = 83611426.

The previous prime is 83611421. The next prime is 83611439. The reversal of 83611427 is 72411638.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83611427 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 83611393 and 83611402.

It is not a weakly prime, because it can be changed into another prime (83611421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41805713 + 41805714.

It is an arithmetic number, because the mean of its divisors is an integer number (41805714).

Almost surely, 2^83611427 is an apocalyptic number.

83611427 is a deficient number, since it is larger than the sum of its proper divisors (1).

83611427 is an equidigital number, since it uses as much as digits as its factorization.

83611427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 32.

The square root of 83611427 is about 9143.9284227295. The cubic root of 83611427 is about 437.2755672827.

The spelling of 83611427 in words is "eighty-three million, six hundred eleven thousand, four hundred twenty-seven".