67213703 has 4 divisors (see below), whose sum is σ = 67232448. Its totient is φ = 67194960.

The previous prime is 67213681. The next prime is 67213711. The reversal of 67213703 is 30731276.

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

It is a cyclic number.

It is not a de Polignac number, because 67213703 - 2¹⁶ = 67148167 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 (67213723) 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, 2126 + ... + 11787.

It is an arithmetic number, because the mean of its divisors is an integer number (16808112).

Almost surely, 2^67213703 is an apocalyptic number.

67213703 is a deficient number, since it is larger than the sum of its proper divisors (18745).

67213703 is a wasteful number, since it uses less digits than its factorization.

67213703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18744.

The product of its (nonzero) digits is 5292, while the sum is 29.

The square root of 67213703 is about 8198.3963675831. The cubic root of 67213703 is about 406.5861751321.

Adding to 67213703 its reverse (30731276), we get a palindrome (97944979).

The spelling of 67213703 in words is "sixty-seven million, two hundred thirteen thousand, seven hundred three".