83381479 has 2 divisors, whose sum is σ = 83381480. Its totient is φ = 83381478.

The previous prime is 83381471. The next prime is 83381483. The reversal of 83381479 is 97418338.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 83381479 - 2³ = 83381471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83381471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41690739 + 41690740.

It is an arithmetic number, because the mean of its divisors is an integer number (41690740).

Almost surely, 2^83381479 is an apocalyptic number.

83381479 is a deficient number, since it is larger than the sum of its proper divisors (1).

83381479 is an equidigital number, since it uses as much as digits as its factorization.

83381479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 43.

The square root of 83381479 is about 9131.3459577436. The cubic root of 83381479 is about 436.8743344014.

The spelling of 83381479 in words is "eighty-three million, three hundred eighty-one thousand, four hundred seventy-nine".