2467661 has 4 divisors (see below), whose sum is σ = 2820192. Its totient is φ = 2115132.

The previous prime is 2467649. The next prime is 2467691. The reversal of 2467661 is 1667642.

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: 1667642 = 2 ⋅833821.

It is a cyclic number.

It is not a de Polignac number, because 2467661 - 2¹⁴ = 2451277 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2467691) 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, 176255 + ... + 176268.

It is an arithmetic number, because the mean of its divisors is an integer number (705048).

2^2467661 is an apocalyptic number.

It is an amenable number.

2467661 is a deficient number, since it is larger than the sum of its proper divisors (352531).

2467661 is an equidigital number, since it uses as much as digits as its factorization.

2467661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352530.

The product of its digits is 12096, while the sum is 32.

The square root of 2467661 is about 1570.8790532692. The cubic root of 2467661 is about 135.1331288470.

The spelling of 2467661 in words is "two million, four hundred sixty-seven thousand, six hundred sixty-one".