83690361 has 16 divisors (see below), whose sum is σ = 124139520. Its totient is φ = 55724400.

The previous prime is 83690329. The next prime is 83690363. The reversal of 83690361 is 16309638.

It is a happy number.

It is not a de Polignac number, because 83690361 - 2⁵ = 83690329 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (83690363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29731 + ... + 32423.

It is an arithmetic number, because the mean of its divisors is an integer number (7758720).

Almost surely, 2^83690361 is an apocalyptic number.

It is an amenable number.

83690361 is a deficient number, since it is larger than the sum of its proper divisors (40449159).

83690361 is a wasteful number, since it uses less digits than its factorization.

83690361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3853 (or 3847 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 83690361 is about 9148.2436019162. The cubic root of 83690361 is about 437.4131284387.

Adding to 83690361 its reverse (16309638), we get a palindrome (99999999).

The spelling of 83690361 in words is "eighty-three million, six hundred ninety thousand, three hundred sixty-one".