7673661 has 12 divisors (see below), whose sum is σ = 11466780. Its totient is φ = 4939200.

The previous prime is 7673657. The next prime is 7673671. The reversal of 7673661 is 1663767.

It can be written as a sum of positive squares in 2 ways, for example, as 2268036 + 5405625 = 1506^2 + 2325^2 .

It is not a de Polignac number, because 7673661 - 2² = 7673657 is a prime.

It is an Ulam 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 (7673621) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14440 + ... + 14961.

It is an arithmetic number, because the mean of its divisors is an integer number (955565).

Almost surely, 2^7673661 is an apocalyptic number.

It is an amenable number.

7673661 is a deficient number, since it is larger than the sum of its proper divisors (3793119).

7673661 is a wasteful number, since it uses less digits than its factorization.

7673661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29436 (or 29433 counting only the distinct ones).

The product of its digits is 31752, while the sum is 36.

The square root of 7673661 is about 2770.1373612151. The cubic root of 7673661 is about 197.2426686495.

It can be divided in two parts, 76 and 73661, that added together give a palindrome (73737).

The spelling of 7673661 in words is "seven million, six hundred seventy-three thousand, six hundred sixty-one".