721094027 has 4 divisors (see below), whose sum is σ = 721302576. Its totient is φ = 720885480.

The previous prime is 721094009. The next prime is 721094029. The reversal of 721094027 is 720490127.

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 721094027 - 2¹⁰ = 721093003 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 721093984 and 721094002.

It is not an unprimeable number, because it can be changed into a prime (721094029) 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, 98999 + ... + 106032.

It is an arithmetic number, because the mean of its divisors is an integer number (180325644).

Almost surely, 2^721094027 is an apocalyptic number.

721094027 is a deficient number, since it is larger than the sum of its proper divisors (208549).

721094027 is a wasteful number, since it uses less digits than its factorization.

721094027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208548.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 721094027 is about 26853.1939813498. The cubic root of 721094027 is about 896.7346804834.

The spelling of 721094027 in words is "seven hundred twenty-one million, ninety-four thousand, twenty-seven".