7664673 has 4 divisors (see below), whose sum is σ = 10219568. Its totient is φ = 5109780.

The previous prime is 7664669. The next prime is 7664687. The reversal of 7664673 is 3764667.

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 not a de Polignac number, because 7664673 - 2² = 7664669 is a prime.

It is a d-powerful number, because it can be written as 7⁵ + 6 + 6⁵ + 4⁵ + 6⁷ + 7⁸ + 3¹³ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7664633) 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, 1277443 + ... + 1277448.

It is an arithmetic number, because the mean of its divisors is an integer number (2554892).

Almost surely, 2^7664673 is an apocalyptic number.

It is an amenable number.

7664673 is a deficient number, since it is larger than the sum of its proper divisors (2554895).

7664673 is a wasteful number, since it uses less digits than its factorization.

7664673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2554894.

The product of its digits is 127008, while the sum is 39.

The square root of 7664673 is about 2768.5145836712. The cubic root of 7664673 is about 197.1656298145.

The spelling of 7664673 in words is "seven million, six hundred sixty-four thousand, six hundred seventy-three".