83788949 has 2 divisors, whose sum is σ = 83788950. Its totient is φ = 83788948.

The previous prime is 83788933. The next prime is 83788951. The reversal of 83788949 is 94988738.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67732900 + 16056049 = 8230^2 + 4007^2 .

It is a cyclic number.

It is not a de Polignac number, because 83788949 - 2⁴ = 83788933 is a prime.

Together with 83788951, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 83788894 and 83788903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83788049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41894474 + 41894475.

It is an arithmetic number, because the mean of its divisors is an integer number (41894475).

Almost surely, 2^83788949 is an apocalyptic number.

It is an amenable number.

83788949 is a deficient number, since it is larger than the sum of its proper divisors (1).

83788949 is an equidigital number, since it uses as much as digits as its factorization.

83788949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3483648, while the sum is 56.

The square root of 83788949 is about 9153.6303726991. The cubic root of 83788949 is about 437.5848199083.

The spelling of 83788949 in words is "eighty-three million, seven hundred eighty-eight thousand, nine hundred forty-nine".