722436097 has 4 divisors (see below), whose sum is σ = 764932356. Its totient is φ = 679939840.

The previous prime is 722436089. The next prime is 722436149. The reversal of 722436097 is 790634227.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 790634227 = 239 ⋅3308093.

It can be written as a sum of positive squares in 2 ways, for example, as 234733041 + 487703056 = 15321^2 + 22084^2 .

It is a cyclic number.

It is not a de Polignac number, because 722436097 - 2³ = 722436089 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (722436037) 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, 21248104 + ... + 21248137.

It is an arithmetic number, because the mean of its divisors is an integer number (191233089).

It is a Proth number, since it is equal to 22047 ⋅ 2¹⁵ + 1 and 22047 < 2¹⁵.

Almost surely, 2^722436097 is an apocalyptic number.

It is an amenable number.

722436097 is a deficient number, since it is larger than the sum of its proper divisors (42496259).

722436097 is a wasteful number, since it uses less digits than its factorization.

722436097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42496258.

The product of its (nonzero) digits is 127008, while the sum is 40.

The square root of 722436097 is about 26878.1713849733. The cubic root of 722436097 is about 897.2906573815.

The spelling of 722436097 in words is "seven hundred twenty-two million, four hundred thirty-six thousand, ninety-seven".