9649887 has 8 divisors (see below), whose sum is σ = 13856304. Its totient is φ = 5938368.

The previous prime is 9649877. The next prime is 9649901. The reversal of 9649887 is 7889469.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9649887 - 2¹² = 9645791 is a prime.

It is a super-2 number, since 2×9649887² = 186240638225538, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9649847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123678 + ... + 123755.

It is an arithmetic number, because the mean of its divisors is an integer number (1732038).

Almost surely, 2^9649887 is an apocalyptic number.

9649887 is a deficient number, since it is larger than the sum of its proper divisors (4206417).

9649887 is a wasteful number, since it uses less digits than its factorization.

9649887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247449.

The product of its digits is 870912, while the sum is 51.

The square root of 9649887 is about 3106.4267253550. The cubic root of 9649887 is about 212.8992227535.

The spelling of 9649887 in words is "nine million, six hundred forty-nine thousand, eight hundred eighty-seven".