8939503977 has 16 divisors (see below), whose sum is σ = 12010890240. Its totient is φ = 5914032912.

The previous prime is 8939503973. The next prime is 8939503981. The reversal of 8939503977 is 7793059398.

It is an interprime number because it is at equal distance from previous prime (8939503973) and next prime (8939503981).

It is not a de Polignac number, because 8939503977 - 2² = 8939503973 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8939503977.

It is not an unprimeable number, because it can be changed into a prime (8939503973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 244428 + ... + 278610.

It is an arithmetic number, because the mean of its divisors is an integer number (750680640).

Almost surely, 2^8939503977 is an apocalyptic number.

It is an amenable number.

8939503977 is a deficient number, since it is larger than the sum of its proper divisors (3071386263).

8939503977 is a wasteful number, since it uses less digits than its factorization.

8939503977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34852.

The product of its (nonzero) digits is 12859560, while the sum is 60.

The square root of 8939503977 is about 94548.9501633942. The cubic root of 8939503977 is about 2075.4127191431.

The spelling of 8939503977 in words is "eight billion, nine hundred thirty-nine million, five hundred three thousand, nine hundred seventy-seven".