67312983 has 4 divisors (see below), whose sum is σ = 89750648. Its totient is φ = 44875320.

The previous prime is 67312981. The next prime is 67313011. The reversal of 67312983 is 38921376.

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

It is not a de Polignac number, because 67312983 - 2¹ = 67312981 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 (67312981) 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, 11218828 + ... + 11218833.

It is an arithmetic number, because the mean of its divisors is an integer number (22437662).

Almost surely, 2^67312983 is an apocalyptic number.

67312983 is a deficient number, since it is larger than the sum of its proper divisors (22437665).

67312983 is a wasteful number, since it uses less digits than its factorization.

67312983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22437664.

The product of its digits is 54432, while the sum is 39.

The square root of 67312983 is about 8204.4489760130. The cubic root of 67312983 is about 406.7862633850.

The spelling of 67312983 in words is "sixty-seven million, three hundred twelve thousand, nine hundred eighty-three".