83119690 has 16 divisors (see below), whose sum is σ = 149771592. Its totient is φ = 33213184.

The previous prime is 83119657. The next prime is 83119691. The reversal of 83119690 is 9691138.

It is a Cunningham number, because it is equal to 9117²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 29931841 + 53187849 = 5471^2 + 7293^2 .

It is a super-2 number, since 2×83119690² = 13817765731392200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (83119691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7182 + ... + 14758.

Almost surely, 2^83119690 is an apocalyptic number.

83119690 is a deficient number, since it is larger than the sum of its proper divisors (66651902).

83119690 is a wasteful number, since it uses less digits than its factorization.

83119690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8681.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 83119690 is about 9117.0000548426. Note that the first 4 decimals coincide. The cubic root of 83119690 is about 436.4166436422.

The spelling of 83119690 in words is "eighty-three million, one hundred nineteen thousand, six hundred ninety".