2663471 has 4 divisors (see below), whose sum is σ = 2689944. Its totient is φ = 2637000.

The previous prime is 2663467. The next prime is 2663491. The reversal of 2663471 is 1743662.

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

It is a cyclic number.

It is not a de Polignac number, because 2663471 - 2² = 2663467 is a prime.

It is a super-3 number, since 3×2663471³ = 56684611219167708333, which contains 333 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2663431) 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, 13085 + ... + 13286.

It is an arithmetic number, because the mean of its divisors is an integer number (672486).

2^2663471 is an apocalyptic number.

2663471 is a deficient number, since it is larger than the sum of its proper divisors (26473).

2663471 is a wasteful number, since it uses less digits than its factorization.

2663471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26472.

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

The square root of 2663471 is about 1632.0143994463. The cubic root of 2663471 is about 138.6168389401.

The spelling of 2663471 in words is "two million, six hundred sixty-three thousand, four hundred seventy-one".