9964944597 has 4 divisors (see below), whose sum is σ = 13286592800. Its totient is φ = 6643296396.

The previous prime is 9964944593. The next prime is 9964944601. The reversal of 9964944597 is 7954494699.

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 an interprime number because it is at equal distance from previous prime (9964944593) and next prime (9964944601).

It is not a de Polignac number, because 9964944597 - 2² = 9964944593 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9964944593) 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, 1660824097 + ... + 1660824102.

It is an arithmetic number, because the mean of its divisors is an integer number (3321648200).

Almost surely, 2^9964944597 is an apocalyptic number.

It is an amenable number.

9964944597 is a deficient number, since it is larger than the sum of its proper divisors (3321648203).

9964944597 is a wasteful number, since it uses less digits than its factorization.

9964944597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3321648202.

The product of its digits is 88179840, while the sum is 66.

The square root of 9964944597 is about 99824.5691050054. The cubic root of 9964944597 is about 2151.9142566968.

The spelling of 9964944597 in words is "nine billion, nine hundred sixty-four million, nine hundred forty-four thousand, five hundred ninety-seven".