670293263 has 2 divisors, whose sum is σ = 670293264. Its totient is φ = 670293262.

The previous prime is 670293251. The next prime is 670293271. The reversal of 670293263 is 362392076.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 670293263 - 2⁸ = 670293007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (670293223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335146631 + 335146632.

It is an arithmetic number, because the mean of its divisors is an integer number (335146632).

Almost surely, 2^670293263 is an apocalyptic number.

670293263 is a deficient number, since it is larger than the sum of its proper divisors (1).

670293263 is an equidigital number, since it uses as much as digits as its factorization.

670293263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 38.

The square root of 670293263 is about 25890.0224603997. The cubic root of 670293263 is about 875.1616628644.

The spelling of 670293263 in words is "six hundred seventy million, two hundred ninety-three thousand, two hundred sixty-three".