2291667 has 32 divisors (see below), whose sum is σ = 3732480. Its totient is φ = 1223040.

The previous prime is 2291659. The next prime is 2291677. The reversal of 2291667 is 7661922.

It is not a de Polignac number, because 2291667 - 2³ = 2291659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2291657) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32242 + ... + 32312.

It is an arithmetic number, because the mean of its divisors is an integer number (116640).

2^2291667 is an apocalyptic number.

2291667 is a deficient number, since it is larger than the sum of its proper divisors (1440813).

2291667 is a wasteful number, since it uses less digits than its factorization.

2291667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163.

The product of its digits is 9072, while the sum is 33.

The square root of 2291667 is about 1513.8252871451. The cubic root of 2291667 is about 131.8410046167.

The spelling of 2291667 in words is "two million, two hundred ninety-one thousand, six hundred sixty-seven".