2997391 has 8 divisors (see below), whose sum is σ = 3065040. Its totient is φ = 2930688.

The previous prime is 2997373. The next prime is 2997409. The reversal of 2997391 is 1937992.

2997391 = T₅ + T₆ + ... + T₂₆₁.

It is an interprime number because it is at equal distance from previous prime (2997373) and next prime (2997409).

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 2997391 - 2⁷ = 2997263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2997301) 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, 11535 + ... + 11791.

It is an arithmetic number, because the mean of its divisors is an integer number (383130).

2^2997391 is an apocalyptic number.

2997391 is a deficient number, since it is larger than the sum of its proper divisors (67649).

2997391 is a wasteful number, since it uses less digits than its factorization.

2997391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473.

The product of its digits is 30618, while the sum is 40.

The square root of 2997391 is about 1731.2974903234. The cubic root of 2997391 is about 144.1831356923.

The spelling of 2997391 in words is "two million, nine hundred ninety-seven thousand, three hundred ninety-one".