721094029 has 2 divisors, whose sum is σ = 721094030. Its totient is φ = 721094028.

The previous prime is 721094009. The next prime is 721094063. The reversal of 721094029 is 920490127.

It is a happy number.

It is an a-pointer prime, because the next prime (721094063) can be obtained adding 721094029 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 484088004 + 237006025 = 22002^2 + 15395^2 .

It is an emirp because it is prime and its reverse (920490127) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 721094029 - 2⁹ = 721093517 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 721093985 and 721094003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (721094009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360547014 + 360547015.

It is an arithmetic number, because the mean of its divisors is an integer number (360547015).

Almost surely, 2^721094029 is an apocalyptic number.

It is an amenable number.

721094029 is a deficient number, since it is larger than the sum of its proper divisors (1).

721094029 is an equidigital number, since it uses as much as digits as its factorization.

721094029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 721094029 is about 26853.1940185893. The cubic root of 721094029 is about 896.7346813125.

The spelling of 721094029 in words is "seven hundred twenty-one million, ninety-four thousand, twenty-nine".