83349961 has 2 divisors, whose sum is σ = 83349962. Its totient is φ = 83349960.

The previous prime is 83349923. The next prime is 83349967. The reversal of 83349961 is 16994338.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83174400 + 175561 = 9120^2 + 419^2 .

It is a cyclic number.

It is not a de Polignac number, because 83349961 - 2⁹ = 83349449 is a prime.

It is not a weakly prime, because it can be changed into another prime (83349967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41674980 + 41674981.

It is an arithmetic number, because the mean of its divisors is an integer number (41674981).

Almost surely, 2^83349961 is an apocalyptic number.

It is an amenable number.

83349961 is a deficient number, since it is larger than the sum of its proper divisors (1).

83349961 is an equidigital number, since it uses as much as digits as its factorization.

83349961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139968, while the sum is 43.

The square root of 83349961 is about 9129.6199811383. The cubic root of 83349961 is about 436.8192816457.

The spelling of 83349961 in words is "eighty-three million, three hundred forty-nine thousand, nine hundred sixty-one".