707263421 has 2 divisors, whose sum is σ = 707263422. Its totient is φ = 707263420.

The previous prime is 707263351. The next prime is 707263433. The reversal of 707263421 is 124362707.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 416731396 + 290532025 = 20414^2 + 17045^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-707263421 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (707263471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 353631710 + 353631711.

It is an arithmetic number, because the mean of its divisors is an integer number (353631711).

Almost surely, 2^707263421 is an apocalyptic number.

It is an amenable number.

707263421 is a deficient number, since it is larger than the sum of its proper divisors (1).

707263421 is an equidigital number, since it uses as much as digits as its factorization.

707263421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 707263421 is about 26594.4246224655. The cubic root of 707263421 is about 890.9644978828.

It can be divided in two parts, 70726 and 3421, that added together give a palindrome (74147).

The spelling of 707263421 in words is "seven hundred seven million, two hundred sixty-three thousand, four hundred twenty-one".