722412085 has 4 divisors (see below), whose sum is σ = 866894508. Its totient is φ = 577929664.

The previous prime is 722412079. The next prime is 722412109. The reversal of 722412085 is 580214227.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 580214227 = 571 ⋅1016137.

It can be written as a sum of positive squares in 2 ways, for example, as 178543044 + 543869041 = 13362^2 + 23321^2 .

It is a cyclic number.

It is not a de Polignac number, because 722412085 - 2³ = 722412077 is a prime.

It is a super-3 number, since 3×722412085³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72241204 + ... + 72241213.

It is an arithmetic number, because the mean of its divisors is an integer number (216723627).

Almost surely, 2^722412085 is an apocalyptic number.

It is an amenable number.

722412085 is a deficient number, since it is larger than the sum of its proper divisors (144482423).

722412085 is a wasteful number, since it uses less digits than its factorization.

722412085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144482422.

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 722412085 is about 26877.7246990886. The cubic root of 722412085 is about 897.2807160261.

The spelling of 722412085 in words is "seven hundred twenty-two million, four hundred twelve thousand, eighty-five".