83506949 has 2 divisors, whose sum is σ = 83506950. Its totient is φ = 83506948.

The previous prime is 83506939. The next prime is 83506961. The reversal of 83506949 is 94960538.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67650625 + 15856324 = 8225^2 + 3982^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83506949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83506939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41753474 + 41753475.

It is an arithmetic number, because the mean of its divisors is an integer number (41753475).

Almost surely, 2^83506949 is an apocalyptic number.

It is an amenable number.

83506949 is a deficient number, since it is larger than the sum of its proper divisors (1).

83506949 is an equidigital number, since it uses as much as digits as its factorization.

83506949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 83506949 is about 9138.2136657008. The cubic root of 83506949 is about 437.0933564667.

The spelling of 83506949 in words is "eighty-three million, five hundred six thousand, nine hundred forty-nine".