2472661 has 4 divisors (see below), whose sum is σ = 2580192. Its totient is φ = 2365132.

The previous prime is 2472649. The next prime is 2472677. The reversal of 2472661 is 1662742.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1662742 = 2 ⋅831371.

It is a cyclic number.

It is not a de Polignac number, because 2472661 - 2¹⁵ = 2439893 is a prime.

It is a super-2 number, since 2×2472661² = 12228104841842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2472611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53731 + ... + 53776.

It is an arithmetic number, because the mean of its divisors is an integer number (645048).

2^2472661 is an apocalyptic number.

It is an amenable number.

2472661 is a deficient number, since it is larger than the sum of its proper divisors (107531).

2472661 is a wasteful number, since it uses less digits than its factorization.

2472661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107530.

The product of its digits is 4032, while the sum is 28.

The square root of 2472661 is about 1572.4697135398. The cubic root of 2472661 is about 135.2243366493.

The spelling of 2472661 in words is "two million, four hundred seventy-two thousand, six hundred sixty-one".