9726389966 has 8 divisors (see below), whose sum is σ = 14598207624. Its totient is φ = 4860320760.

The previous prime is 9726389963. The next prime is 9726389969. The reversal of 9726389966 is 6699836279.

It is an interprime number because it is at equal distance from previous prime (9726389963) and next prime (9726389969).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9726389963) 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, 1432880 + ... + 1439651.

It is an arithmetic number, because the mean of its divisors is an integer number (1824775953).

Almost surely, 2^9726389966 is an apocalyptic number.

9726389966 is a deficient number, since it is larger than the sum of its proper divisors (4871817658).

9726389966 is a wasteful number, since it uses less digits than its factorization.

9726389966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2874226.

The product of its digits is 52907904, while the sum is 65.

The square root of 9726389966 is about 98622.4617721541. The cubic root of 9726389966 is about 2134.6035433630.

The spelling of 9726389966 in words is "nine billion, seven hundred twenty-six million, three hundred eighty-nine thousand, nine hundred sixty-six".