267404397 has 8 divisors (see below), whose sum is σ = 383965344. Its totient is φ = 164556528.

The previous prime is 267404383. The next prime is 267404491. The reversal of 267404397 is 793404762.

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

It is not a de Polignac number, because 267404397 - 2¹⁰ = 267403373 is a prime.

It is a super-2 number, since 2×267404397² = 143010223069867218, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (267404497) 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, 3428223 + ... + 3428300.

It is an arithmetic number, because the mean of its divisors is an integer number (47995668).

Almost surely, 2^267404397 is an apocalyptic number.

It is an amenable number.

267404397 is a deficient number, since it is larger than the sum of its proper divisors (116560947).

267404397 is a wasteful number, since it uses less digits than its factorization.

267404397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6856539.

The product of its (nonzero) digits is 254016, while the sum is 42.

The square root of 267404397 is about 16352.5043036227. The cubic root of 267404397 is about 644.2526022233.

The spelling of 267404397 in words is "two hundred sixty-seven million, four hundred four thousand, three hundred ninety-seven".