709494481 has 2 divisors, whose sum is σ = 709494482. Its totient is φ = 709494480.

The previous prime is 709494451. The next prime is 709494491. The reversal of 709494481 is 184494907.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 663526081 + 45968400 = 25759^2 + 6780^2 .

It is an emirp because it is prime and its reverse (184494907) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 709494481 - 2⁵ = 709494449 is a prime.

It is a super-2 number, since 2×709494481² = 1006764837138918722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (709494431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 354747240 + 354747241.

It is an arithmetic number, because the mean of its divisors is an integer number (354747241).

Almost surely, 2^709494481 is an apocalyptic number.

It is an amenable number.

709494481 is a deficient number, since it is larger than the sum of its proper divisors (1).

709494481 is an equidigital number, since it uses as much as digits as its factorization.

709494481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 709494481 is about 26636.3376048585. The cubic root of 709494481 is about 891.9003626467.

The spelling of 709494481 in words is "seven hundred nine million, four hundred ninety-four thousand, four hundred eighty-one".