83190427 has 2 divisors, whose sum is σ = 83190428. Its totient is φ = 83190426.

The previous prime is 83190407. The next prime is 83190431. The reversal of 83190427 is 72409138.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83190427 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 83190392 and 83190401.

It is not a weakly prime, because it can be changed into another prime (83190407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41595213 + 41595214.

It is an arithmetic number, because the mean of its divisors is an integer number (41595214).

Almost surely, 2^83190427 is an apocalyptic number.

83190427 is a deficient number, since it is larger than the sum of its proper divisors (1).

83190427 is an equidigital number, since it uses as much as digits as its factorization.

83190427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 83190427 is about 9120.8786309215. The cubic root of 83190427 is about 436.5404091462.

The spelling of 83190427 in words is "eighty-three million, one hundred ninety thousand, four hundred twenty-seven".