68402023 has 4 divisors (see below), whose sum is σ = 71376048. Its totient is φ = 65428000.

The previous prime is 68401987. The next prime is 68402029. The reversal of 68402023 is 32020486.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68402023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68402029) 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, 1486978 + ... + 1487023.

It is an arithmetic number, because the mean of its divisors is an integer number (17844012).

Almost surely, 2^68402023 is an apocalyptic number.

68402023 is a deficient number, since it is larger than the sum of its proper divisors (2974025).

68402023 is a wasteful number, since it uses less digits than its factorization.

68402023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2974024.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 68402023 is about 8270.5515535543. The cubic root of 68402023 is about 408.9683023719.

The spelling of 68402023 in words is "sixty-eight million, four hundred two thousand, twenty-three".