722342513 has 4 divisors (see below), whose sum is σ = 760360560. Its totient is φ = 684324468.

The previous prime is 722342497. The next prime is 722342539. The reversal of 722342513 is 315243227.

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 an emirpimes, since its reverse is a distinct semiprime: 315243227 = 13 ⋅24249479.

It is a cyclic number.

It is not a de Polignac number, because 722342513 - 2⁴ = 722342497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (722341513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19008995 + ... + 19009032.

It is an arithmetic number, because the mean of its divisors is an integer number (190090140).

Almost surely, 2^722342513 is an apocalyptic number.

It is an amenable number.

722342513 is a deficient number, since it is larger than the sum of its proper divisors (38018047).

722342513 is a wasteful number, since it uses less digits than its factorization.

722342513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38018046.

The product of its digits is 10080, while the sum is 29.

The square root of 722342513 is about 26876.4304363507. The cubic root of 722342513 is about 897.2519108518.

It can be divided in two parts, 72234 and 2513, that added together give a palindrome (74747).

The spelling of 722342513 in words is "seven hundred twenty-two million, three hundred forty-two thousand, five hundred thirteen".