4971893764 has 6 divisors (see below), whose sum is σ = 8700814094. Its totient is φ = 2485946880.

The previous prime is 4971893701. The next prime is 4971893767. The reversal of 4971893764 is 4673981794.

It can be written as a sum of positive squares in only one way, i.e., 4905601600 + 66292164 = 70040^2 + 8142^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4971893699 and 4971893708.

It is not an unprimeable number, because it can be changed into a prime (4971893767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621486717 + ... + 621486724.

Almost surely, 2^4971893764 is an apocalyptic number.

It is an amenable number.

4971893764 is a deficient number, since it is larger than the sum of its proper divisors (3728920330).

4971893764 is a wasteful number, since it uses less digits than its factorization.

4971893764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1242973445 (or 1242973443 counting only the distinct ones).

The product of its digits is 9144576, while the sum is 58.

The square root of 4971893764 is about 70511.6569369916. The cubic root of 4971893764 is about 1706.7658584079.

The spelling of 4971893764 in words is "four billion, nine hundred seventy-one million, eight hundred ninety-three thousand, seven hundred sixty-four".