722473847 has 2 divisors, whose sum is σ = 722473848. Its totient is φ = 722473846.

The previous prime is 722473819. The next prime is 722473849. The reversal of 722473847 is 748374227.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 722473847 - 2⁶ = 722473783 is a prime.

Together with 722473849, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 722473798 and 722473807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (722473849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361236923 + 361236924.

It is an arithmetic number, because the mean of its divisors is an integer number (361236924).

Almost surely, 2^722473847 is an apocalyptic number.

722473847 is a deficient number, since it is larger than the sum of its proper divisors (1).

722473847 is an equidigital number, since it uses as much as digits as its factorization.

722473847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 526848, while the sum is 44.

The square root of 722473847 is about 26878.8736185131. The cubic root of 722473847 is about 897.3062860451.

The spelling of 722473847 in words is "seven hundred twenty-two million, four hundred seventy-three thousand, eight hundred forty-seven".