9677639 has 4 divisors (see below), whose sum is σ = 9684024. Its totient is φ = 9671256.

The previous prime is 9677621. The next prime is 9677651. The reversal of 9677639 is 9367769.

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.

It is a cyclic number.

It is not a de Polignac number, because 9677639 - 2⁸ = 9677383 is a prime.

It is a super-2 number, since 2×9677639² = 187313393228642, which contains 22 as substring.

It is a d-powerful number, because it can be written as 9² + 6⁸ + 7⁴ + 7⁸ + 6⁸ + 3⁹ + 9⁶ .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9677593 and 9677602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9671639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 524 + ... + 4430.

It is an arithmetic number, because the mean of its divisors is an integer number (2421006).

Almost surely, 2^9677639 is an apocalyptic number.

9677639 is a deficient number, since it is larger than the sum of its proper divisors (6385).

9677639 is a wasteful number, since it uses less digits than its factorization.

9677639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6384.

The product of its digits is 428652, while the sum is 47.

The square root of 9677639 is about 3110.8903870114. The cubic root of 9677639 is about 213.1031188998.

The spelling of 9677639 in words is "nine million, six hundred seventy-seven thousand, six hundred thirty-nine".