4940977021 has 4 divisors (see below), whose sum is σ = 4952130912. Its totient is φ = 4929823132.

The previous prime is 4940977009. The next prime is 4940977031. The reversal of 4940977021 is 1207790494.

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.

It is a cyclic number.

It is not a de Polignac number, because 4940977021 - 2⁷ = 4940976893 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 (4940977031) 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, 5576281 + ... + 5577166.

It is an arithmetic number, because the mean of its divisors is an integer number (1238032728).

Almost surely, 2^4940977021 is an apocalyptic number.

It is an amenable number.

4940977021 is a deficient number, since it is larger than the sum of its proper divisors (11153891).

4940977021 is a wasteful number, since it uses less digits than its factorization.

4940977021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11153890.

The product of its (nonzero) digits is 127008, while the sum is 43.

The square root of 4940977021 is about 70292.0836296663. The cubic root of 4940977021 is about 1703.2207708683.

The spelling of 4940977021 in words is "four billion, nine hundred forty million, nine hundred seventy-seven thousand, twenty-one".