4372661 has 4 divisors (see below), whose sum is σ = 4377324. Its totient is φ = 4368000.

The previous prime is 4372657. The next prime is 4372673. The reversal of 4372661 is 1662734.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1662734 = 2 ⋅831367.

It can be written as a sum of positive squares in 2 ways, for example, as 1168561 + 3204100 = 1081^2 + 1790^2 .

It is a cyclic number.

It is not a de Polignac number, because 4372661 - 2² = 4372657 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4372631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 380 + ... + 2981.

It is an arithmetic number, because the mean of its divisors is an integer number (1094331).

Almost surely, 2^4372661 is an apocalyptic number.

It is an amenable number.

4372661 is a deficient number, since it is larger than the sum of its proper divisors (4663).

4372661 is a wasteful number, since it uses less digits than its factorization.

4372661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4662.

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

The square root of 4372661 is about 2091.0908636403. The cubic root of 4372661 is about 163.5241635552.

The spelling of 4372661 in words is "four million, three hundred seventy-two thousand, six hundred sixty-one".