4947763477 has 4 divisors (see below), whose sum is σ = 4948261516. Its totient is φ = 4947265440.

The previous prime is 4947763417. The next prime is 4947763531. The reversal of 4947763477 is 7743677494.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3133088676 + 1814674801 = 55974^2 + 42599^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4947763477 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 (4947763417) 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, 233808 + ... + 254089.

It is an arithmetic number, because the mean of its divisors is an integer number (1237065379).

Almost surely, 2^4947763477 is an apocalyptic number.

It is an amenable number.

4947763477 is a deficient number, since it is larger than the sum of its proper divisors (498039).

4947763477 is a wasteful number, since it uses less digits than its factorization.

4947763477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498038.

The product of its digits is 24893568, while the sum is 58.

The square root of 4947763477 is about 70340.3403247383. The cubic root of 4947763477 is about 1704.0002081313. Note that the first 3 decimals are identical.

The spelling of 4947763477 in words is "four billion, nine hundred forty-seven million, seven hundred sixty-three thousand, four hundred seventy-seven".