267421321 has 8 divisors (see below), whose sum is σ = 271685024. Its totient is φ = 263165760.

The previous prime is 267421309. The next prime is 267421327. The reversal of 267421321 is 123124762.

267421321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 267421321 - 2¹⁵ = 267388553 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 267421321.

It is not an unprimeable number, because it can be changed into a prime (267421327) 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, 124426 + ... + 126556.

It is an arithmetic number, because the mean of its divisors is an integer number (33960628).

Almost surely, 2^267421321 is an apocalyptic number.

It is an amenable number.

267421321 is a deficient number, since it is larger than the sum of its proper divisors (4263703).

267421321 is a wasteful number, since it uses less digits than its factorization.

267421321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4071.

The product of its digits is 4032, while the sum is 28.

The square root of 267421321 is about 16353.0217696914. The cubic root of 267421321 is about 644.2661934995.

The spelling of 267421321 in words is "two hundred sixty-seven million, four hundred twenty-one thousand, three hundred twenty-one".