680047453 has 2 divisors, whose sum is σ = 680047454. Its totient is φ = 680047452.

The previous prime is 680047441. The next prime is 680047483. The reversal of 680047453 is 354740086.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 431102169 + 248945284 = 20763^2 + 15778^2 .

It is a cyclic number.

It is not a de Polignac number, because 680047453 - 2¹⁷ = 679916381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (680047483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 340023726 + 340023727.

It is an arithmetic number, because the mean of its divisors is an integer number (340023727).

Almost surely, 2^680047453 is an apocalyptic number.

It is an amenable number.

680047453 is a deficient number, since it is larger than the sum of its proper divisors (1).

680047453 is an equidigital number, since it uses as much as digits as its factorization.

680047453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 680047453 is about 26077.7194746780. The cubic root of 680047453 is about 879.3863891282.

It can be divided in two parts, 68004 and 7453, that added together give a palindrome (75457).

The spelling of 680047453 in words is "six hundred eighty million, forty-seven thousand, four hundred fifty-three".