9964724867 has 4 divisors (see below), whose sum is σ = 9980517456. Its totient is φ = 9948932280.

The previous prime is 9964724851. The next prime is 9964724899. The reversal of 9964724867 is 7684274699.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7684274699 = 31 ⋅247879829.

It is a cyclic number.

It is not a de Polignac number, because 9964724867 - 2⁴ = 9964724851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9964724167) 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, 7895348 + ... + 7896609.

It is an arithmetic number, because the mean of its divisors is an integer number (2495129364).

Almost surely, 2^9964724867 is an apocalyptic number.

9964724867 is a deficient number, since it is larger than the sum of its proper divisors (15792589).

9964724867 is a wasteful number, since it uses less digits than its factorization.

9964724867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15792588.

The product of its digits is 36578304, while the sum is 62.

The square root of 9964724867 is about 99823.4685181796. The cubic root of 9964724867 is about 2151.8984397968.

The spelling of 9964724867 in words is "nine billion, nine hundred sixty-four million, seven hundred twenty-four thousand, eight hundred sixty-seven".