8619963997 has 8 divisors (see below), whose sum is σ = 8828788320. Its totient is φ = 8411519760.

The previous prime is 8619963959. The next prime is 8619964007. The reversal of 8619963997 is 7993699168.

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

It is a cyclic number.

It is not a de Polignac number, because 8619963997 - 2¹⁹ = 8619439709 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 (8619163997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48847 + ... + 140092.

It is an arithmetic number, because the mean of its divisors is an integer number (1103598540).

Almost surely, 2^8619963997 is an apocalyptic number.

It is an amenable number.

8619963997 is a deficient number, since it is larger than the sum of its proper divisors (208824323).

8619963997 is a wasteful number, since it uses less digits than its factorization.

8619963997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190043.

The product of its digits is 39680928, while the sum is 67.

The square root of 8619963997 is about 92843.7612174345. The cubic root of 8619963997 is about 2050.3837470778.

The spelling of 8619963997 in words is "eight billion, six hundred nineteen million, nine hundred sixty-three thousand, nine hundred ninety-seven".