720922201 has 4 divisors (see below), whose sum is σ = 720976912. Its totient is φ = 720867492.

The previous prime is 720922199. The next prime is 720922207. The reversal of 720922201 is 102229027.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 720922201 - 2¹ = 720922199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (720922207) 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, 5830 + ... + 38416.

It is an arithmetic number, because the mean of its divisors is an integer number (180244228).

Almost surely, 2^720922201 is an apocalyptic number.

It is an amenable number.

720922201 is a deficient number, since it is larger than the sum of its proper divisors (54711).

720922201 is a wasteful number, since it uses less digits than its factorization.

720922201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54710.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 720922201 is about 26849.9944320292. The cubic root of 720922201 is about 896.6634486387.

The spelling of 720922201 in words is "seven hundred twenty million, nine hundred twenty-two thousand, two hundred one".