7923863947 has 8 divisors (see below), whose sum is σ = 7976630000. Its totient is φ = 7871127264.

The previous prime is 7923863933. The next prime is 7923863957. The reversal of 7923863947 is 7493683297.

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 7923863947 - 2²³ = 7915475339 is a prime.

It is a super-3 number, since 3×7923863947³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7923863891 and 7923863900.

It is not an unprimeable number, because it can be changed into a prime (7923863957) 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, 898204 + ... + 906982.

It is an arithmetic number, because the mean of its divisors is an integer number (997078750).

Almost surely, 2^7923863947 is an apocalyptic number.

7923863947 is a deficient number, since it is larger than the sum of its proper divisors (52766053).

7923863947 is a wasteful number, since it uses less digits than its factorization.

7923863947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14685.

The product of its digits is 13716864, while the sum is 58.

The square root of 7923863947 is about 89016.0881357971. The cubic root of 7923863947 is about 1993.6350943929.

The spelling of 7923863947 in words is "seven billion, nine hundred twenty-three million, eight hundred sixty-three thousand, nine hundred forty-seven".