83929477 has 2 divisors, whose sum is σ = 83929478. Its totient is φ = 83929476.

The previous prime is 83929427. The next prime is 83929481. The reversal of 83929477 is 77492938.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76055841 + 7873636 = 8721^2 + 2806^2 .

It is a cyclic number.

It is not a de Polignac number, because 83929477 - 2²³ = 75540869 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 83929477.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83929427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41964738 + 41964739.

It is an arithmetic number, because the mean of its divisors is an integer number (41964739).

Almost surely, 2^83929477 is an apocalyptic number.

It is an amenable number.

83929477 is a deficient number, since it is larger than the sum of its proper divisors (1).

83929477 is an equidigital number, since it uses as much as digits as its factorization.

83929477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 762048, while the sum is 49.

The square root of 83929477 is about 9161.3032369854. The cubic root of 83929477 is about 437.8293174399.

The spelling of 83929477 in words is "eighty-three million, nine hundred twenty-nine thousand, four hundred seventy-seven".