67223531 has 4 divisors (see below), whose sum is σ = 69392064. Its totient is φ = 65055000.

The previous prime is 67223521. The next prime is 67223543. The reversal of 67223531 is 13532276.

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 67223531 - 2⁶ = 67223467 is a prime.

It is a super-2 number, since 2×67223531² = 9038006240215922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 67223494 and 67223503.

It is not an unprimeable number, because it can be changed into a prime (67223521) 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, 1084220 + ... + 1084281.

It is an arithmetic number, because the mean of its divisors is an integer number (17348016).

Almost surely, 2^67223531 is an apocalyptic number.

67223531 is a deficient number, since it is larger than the sum of its proper divisors (2168533).

67223531 is a wasteful number, since it uses less digits than its factorization.

67223531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2168532.

The product of its digits is 7560, while the sum is 29.

The square root of 67223531 is about 8198.9957311856. The cubic root of 67223531 is about 406.6059912014.

The spelling of 67223531 in words is "sixty-seven million, two hundred twenty-three thousand, five hundred thirty-one".