7644673 has 4 divisors (see below), whose sum is σ = 7658500. Its totient is φ = 7630848.

The previous prime is 7644653. The next prime is 7644709. The reversal of 7644673 is 3764467.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3764467 = 7 ⋅537781.

It can be written as a sum of positive squares in 2 ways, for example, as 5489649 + 2155024 = 2343^2 + 1468^2 .

It is a cyclic number.

It is not a de Polignac number, because 7644673 - 2¹³ = 7636481 is a prime.

It is a deceptive number, since it divides R_7644672.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7644653) 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, 6048 + ... + 7201.

It is an arithmetic number, because the mean of its divisors is an integer number (1914625).

Almost surely, 2^7644673 is an apocalyptic number.

It is an amenable number.

7644673 is a deficient number, since it is larger than the sum of its proper divisors (13827).

7644673 is a wasteful number, since it uses less digits than its factorization.

7644673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13826.

The product of its digits is 84672, while the sum is 37.

The square root of 7644673 is about 2764.9001790300. The cubic root of 7644673 is about 196.9939874654.

It can be divided in two parts, 7 and 644673, that added together give a triangular number (644680 = T₁₁₃₅).

The spelling of 7644673 in words is "seven million, six hundred forty-four thousand, six hundred seventy-three".