721120883 has 4 divisors (see below), whose sum is σ = 824138160. Its totient is φ = 618103608.

The previous prime is 721120871. The next prime is 721120919. The reversal of 721120883 is 388021127.

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

It is a cyclic number.

It is not a de Polignac number, because 721120883 - 2¹⁰ = 721119859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (721120823) 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, 51508628 + ... + 51508641.

It is an arithmetic number, because the mean of its divisors is an integer number (206034540).

Almost surely, 2^721120883 is an apocalyptic number.

721120883 is a deficient number, since it is larger than the sum of its proper divisors (103017277).

721120883 is a wasteful number, since it uses less digits than its factorization.

721120883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103017276.

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 721120883 is about 26853.6940289413. The cubic root of 721120883 is about 896.7458128308.

The spelling of 721120883 in words is "seven hundred twenty-one million, one hundred twenty thousand, eight hundred eighty-three".