720922441 has 8 divisors (see below), whose sum is σ = 728886080. Its totient is φ = 712977552.

The previous prime is 720922439. The next prime is 720922463. The reversal of 720922441 is 144229027.

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 720922441 - 2¹ = 720922439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (720929441) 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, 81166 + ... + 89608.

It is an arithmetic number, because the mean of its divisors is an integer number (91110760).

Almost surely, 2^720922441 is an apocalyptic number.

It is an amenable number.

720922441 is a deficient number, since it is larger than the sum of its proper divisors (7963639).

720922441 is a wasteful number, since it uses less digits than its factorization.

720922441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9375.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 720922441 is about 26849.9989013035. The cubic root of 720922441 is about 896.6635481405.

The spelling of 720922441 in words is "seven hundred twenty million, nine hundred twenty-two thousand, four hundred forty-one".