670236503 has 2 divisors, whose sum is σ = 670236504. Its totient is φ = 670236502.

The previous prime is 670236493. The next prime is 670236557. The reversal of 670236503 is 305632076.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 670236503 - 2⁸ = 670236247 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 670236503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (670236563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335118251 + 335118252.

It is an arithmetic number, because the mean of its divisors is an integer number (335118252).

Almost surely, 2^670236503 is an apocalyptic number.

670236503 is a deficient number, since it is larger than the sum of its proper divisors (1).

670236503 is an equidigital number, since it uses as much as digits as its factorization.

670236503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 32.

The square root of 670236503 is about 25888.9262620140. The cubic root of 670236503 is about 875.1369594592.

Adding to 670236503 its reverse (305632076), we get a palindrome (975868579).

The spelling of 670236503 in words is "six hundred seventy million, two hundred thirty-six thousand, five hundred three".