68402083 has 4 divisors (see below), whose sum is σ = 68418640. Its totient is φ = 68385528.

The previous prime is 68402077. The next prime is 68402099. The reversal of 68402083 is 38020486.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 68402083 - 2⁵ = 68402051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68402053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3613 + ... + 12241.

It is an arithmetic number, because the mean of its divisors is an integer number (17104660).

Almost surely, 2^68402083 is an apocalyptic number.

68402083 is a deficient number, since it is larger than the sum of its proper divisors (16557).

68402083 is an equidigital number, since it uses as much as digits as its factorization.

68402083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16556.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 68402083 is about 8270.5551808811. Note that the first 3 decimals coincide. The cubic root of 68402083 is about 408.9684219497.

The spelling of 68402083 in words is "sixty-eight million, four hundred two thousand, eighty-three".