83933977 has 2 divisors, whose sum is σ = 83933978. Its totient is φ = 83933976.

The previous prime is 83933959. The next prime is 83933989. The reversal of 83933977 is 77933938.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59043856 + 24890121 = 7684^2 + 4989^2 .

It is a cyclic number.

It is not a de Polignac number, because 83933977 - 2¹¹ = 83931929 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 83933977.

It is not a weakly prime, because it can be changed into another prime (83993977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41966988 + 41966989.

It is an arithmetic number, because the mean of its divisors is an integer number (41966989).

Almost surely, 2^83933977 is an apocalyptic number.

It is an amenable number.

83933977 is a deficient number, since it is larger than the sum of its proper divisors (1).

83933977 is an equidigital number, since it uses as much as digits as its factorization.

83933977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 857304, while the sum is 49.

The square root of 83933977 is about 9161.5488319388. The cubic root of 83933977 is about 437.8371422502.

The spelling of 83933977 in words is "eighty-three million, nine hundred thirty-three thousand, nine hundred seventy-seven".