31223467 has 8 divisors (see below), whose sum is σ = 34175232. Its totient is φ = 28290600.

The previous prime is 31223429. The next prime is 31223471. The reversal of 31223467 is 76432213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31223467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31223477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1143 + ... + 7984.

It is an arithmetic number, because the mean of its divisors is an integer number (4271904).

Almost surely, 2^31223467 is an apocalyptic number.

31223467 is a deficient number, since it is larger than the sum of its proper divisors (2951765).

31223467 is a wasteful number, since it uses less digits than its factorization.

31223467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9449.

The product of its digits is 6048, while the sum is 28.

The square root of 31223467 is about 5587.7962561282. The cubic root of 31223467 is about 314.8910919381.

The spelling of 31223467 in words is "thirty-one million, two hundred twenty-three thousand, four hundred sixty-seven".