2667431 has 4 divisors (see below), whose sum is σ = 2872632. Its totient is φ = 2462232.

The previous prime is 2667383. The next prime is 2667433. The reversal of 2667431 is 1347662.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2667431 is a prime.

It is a super-2 number, since 2×2667431² = 14230376279522, 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 = 2667394 and 2667403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2667433) 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, 102581 + ... + 102606.

It is an arithmetic number, because the mean of its divisors is an integer number (718158).

2^2667431 is an apocalyptic number.

2667431 is a deficient number, since it is larger than the sum of its proper divisors (205201).

2667431 is a wasteful number, since it uses less digits than its factorization.

2667431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205200.

The product of its digits is 6048, while the sum is 29.

The square root of 2667431 is about 1633.2271734208. The cubic root of 2667431 is about 138.6855025828.

The spelling of 2667431 in words is "two million, six hundred sixty-seven thousand, four hundred thirty-one".