67290223 has 24 divisors (see below), whose sum is σ = 90861696. Its totient is φ = 48391200.

The previous prime is 67290173. The next prime is 67290241. The reversal of 67290223 is 32209276.

It is not a de Polignac number, because 67290223 - 2¹³ = 67282031 is a prime.

It is a super-2 number, since 2×67290223² = 9055948222779458, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67290263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10428 + ... + 15598.

It is an arithmetic number, because the mean of its divisors is an integer number (3785904).

Almost surely, 2^67290223 is an apocalyptic number.

67290223 is a deficient number, since it is larger than the sum of its proper divisors (23571473).

67290223 is a wasteful number, since it uses less digits than its factorization.

67290223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5215 (or 5202 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 67290223 is about 8203.0618064233. The cubic root of 67290223 is about 406.7404104226.

Adding to 67290223 its reverse (32209276), we get a palindrome (99499499).

The spelling of 67290223 in words is "sixty-seven million, two hundred ninety thousand, two hundred twenty-three".