2473661 has 4 divisors (see below), whose sum is σ = 2531232. Its totient is φ = 2416092.

The previous prime is 2473633. The next prime is 2473663. The reversal of 2473661 is 1663742.

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.

It is a cyclic number.

It is not a de Polignac number, because 2473661 - 2¹⁰ = 2472637 is a prime.

It is a super-2 number, since 2×2473661² = 12237997485842, 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 (2473663) 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, 28721 + ... + 28806.

It is an arithmetic number, because the mean of its divisors is an integer number (632808).

2^2473661 is an apocalyptic number.

It is an amenable number.

2473661 is a deficient number, since it is larger than the sum of its proper divisors (57571).

2473661 is an equidigital number, since it uses as much as digits as its factorization.

2473661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57570.

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

The square root of 2473661 is about 1572.7876525456. The cubic root of 2473661 is about 135.2425634519.

The spelling of 2473661 in words is "two million, four hundred seventy-three thousand, six hundred sixty-one".