9639497 has 4 divisors (see below), whose sum is σ = 11016576. Its totient is φ = 8262420.

The previous prime is 9639473. The next prime is 9639503. The reversal of 9639497 is 7949369.

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 a cyclic number.

It is not a de Polignac number, because 9639497 - 2⁶ = 9639433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9639437) 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, 688529 + ... + 688542.

It is an arithmetic number, because the mean of its divisors is an integer number (2754144).

Almost surely, 2^9639497 is an apocalyptic number.

It is an amenable number.

9639497 is a deficient number, since it is larger than the sum of its proper divisors (1377079).

9639497 is a wasteful number, since it uses less digits than its factorization.

9639497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1377078.

The product of its digits is 367416, while the sum is 47.

The square root of 9639497 is about 3104.7539354996. The cubic root of 9639497 is about 212.8227860279.

It can be divided in two parts, 96 and 39497, that added together give a palindrome (39593).

The spelling of 9639497 in words is "nine million, six hundred thirty-nine thousand, four hundred ninety-seven".