2665471 has 4 divisors (see below), whose sum is σ = 2668744. Its totient is φ = 2662200.

The previous prime is 2665469. The next prime is 2665483. The reversal of 2665471 is 1745662.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2665471 - 2¹ = 2665469 is a prime.

It is a super-3 number, since 3×2665471³ = 56812400527944846333, which contains 333 as substring.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2665771) 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, 661 + ... + 2401.

It is an arithmetic number, because the mean of its divisors is an integer number (667186).

2^2665471 is an apocalyptic number.

2665471 is a deficient number, since it is larger than the sum of its proper divisors (3273).

2665471 is a wasteful number, since it uses less digits than its factorization.

2665471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3272.

The product of its digits is 10080, while the sum is 31.

The square root of 2665471 is about 1632.6270241546. The cubic root of 2665471 is about 138.6515260476.

It can be divided in two parts, 2665 and 471, that added together give a square (3136 = 56²).

The spelling of 2665471 in words is "two million, six hundred sixty-five thousand, four hundred seventy-one".