722147429 has 2 divisors, whose sum is σ = 722147430. Its totient is φ = 722147428.

The previous prime is 722147407. The next prime is 722147467. The reversal of 722147429 is 924741227.

It is an a-pointer prime, because the next prime (722147467) can be obtained adding 722147429 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 712996804 + 9150625 = 26702^2 + 3025^2 .

It is a cyclic number.

It is not a de Polignac number, because 722147429 - 2²⁰ = 721098853 is a prime.

It is a super-2 number, since 2×722147429² = 1042993818422620082, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 722147392 and 722147401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (722147479) 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 as a sum of consecutive naturals, namely, 361073714 + 361073715.

It is an arithmetic number, because the mean of its divisors is an integer number (361073715).

Almost surely, 2^722147429 is an apocalyptic number.

It is an amenable number.

722147429 is a deficient number, since it is larger than the sum of its proper divisors (1).

722147429 is an equidigital number, since it uses as much as digits as its factorization.

722147429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56448, while the sum is 38.

The square root of 722147429 is about 26872.8009146795. The cubic root of 722147429 is about 897.1711295748.

The spelling of 722147429 in words is "seven hundred twenty-two million, one hundred forty-seven thousand, four hundred twenty-nine".