9697887 has 28 divisors (see below), whose sum is σ = 14873544. Its totient is φ = 6318000.

The previous prime is 9697879. The next prime is 9697907. The reversal of 9697887 is 7887969.

It is not a de Polignac number, because 9697887 - 2³ = 9697879 is a prime.

9697887 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9697817) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 38512 + ... + 38762.

It is an arithmetic number, because the mean of its divisors is an integer number (531198).

Almost surely, 2^9697887 is an apocalyptic number.

9697887 is a deficient number, since it is larger than the sum of its proper divisors (5175657).

9697887 is an equidigital number, since it uses as much as digits as its factorization.

9697887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322 (or 307 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 54.

The square root of 9697887 is about 3114.1430602976. The cubic root of 9697887 is about 213.2516367411.

The spelling of 9697887 in words is "nine million, six hundred ninety-seven thousand, eight hundred eighty-seven".