4997010721 has 4 divisors (see below), whose sum is σ = 4999672000. Its totient is φ = 4994349444.

The previous prime is 4997010703. The next prime is 4997010727. The reversal of 4997010721 is 1270107994.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1270107994 = 2 ⋅635053997.

It is a cyclic number.

It is not a de Polignac number, because 4997010721 - 2⁷ = 4997010593 is a prime.

It is a super-2 number, since 2×4997010721² = 49940232291577879682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4997010727) 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, 1327821 + ... + 1331578.

It is an arithmetic number, because the mean of its divisors is an integer number (1249918000).

Almost surely, 2^4997010721 is an apocalyptic number.

It is an amenable number.

4997010721 is a deficient number, since it is larger than the sum of its proper divisors (2661279).

4997010721 is a wasteful number, since it uses less digits than its factorization.

4997010721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2661278.

The product of its (nonzero) digits is 31752, while the sum is 40.

The square root of 4997010721 is about 70689.5375639139. The cubic root of 4997010721 is about 1709.6351057306.

The spelling of 4997010721 in words is "four billion, nine hundred ninety-seven million, ten thousand, seven hundred twenty-one".