4988309921 has 8 divisors (see below), whose sum is σ = 5710140480. Its totient is φ = 4268783088.

The previous prime is 4988309917. The next prime is 4988309927. The reversal of 4988309921 is 1299038894.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4988309921 - 2² = 4988309917 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4988309927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 571286 + ... + 579951.

It is an arithmetic number, because the mean of its divisors is an integer number (713767560).

Almost surely, 2^4988309921 is an apocalyptic number.

It is an amenable number.

4988309921 is a deficient number, since it is larger than the sum of its proper divisors (721830559).

4988309921 is a wasteful number, since it uses less digits than its factorization.

4988309921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1151863.

The product of its (nonzero) digits is 1119744, while the sum is 53.

The square root of 4988309921 is about 70627.9684048748. The cubic root of 4988309921 is about 1708.6422564795.

The spelling of 4988309921 in words is "four billion, nine hundred eighty-eight million, three hundred nine thousand, nine hundred twenty-one".