9766634397 has 16 divisors (see below), whose sum is σ = 14036133888. Its totient is φ = 6004987200.

The previous prime is 9766634389. The next prime is 9766634411. The reversal of 9766634397 is 7934366679.

It is not a de Polignac number, because 9766634397 - 2³ = 9766634389 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9766634397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9766634347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63898 + ... + 153675.

It is an arithmetic number, because the mean of its divisors is an integer number (877258368).

Almost surely, 2^9766634397 is an apocalyptic number.

It is an amenable number.

9766634397 is a deficient number, since it is larger than the sum of its proper divisors (4269499491).

9766634397 is a wasteful number, since it uses less digits than its factorization.

9766634397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218740.

The product of its digits is 30862944, while the sum is 60.

The square root of 9766634397 is about 98826.2839380294. The cubic root of 9766634397 is about 2137.5435753779.

The spelling of 9766634397 in words is "nine billion, seven hundred sixty-six million, six hundred thirty-four thousand, three hundred ninety-seven".