670752787 has 2 divisors, whose sum is σ = 670752788. Its totient is φ = 670752786.

The previous prime is 670752773. The next prime is 670752791. The reversal of 670752787 is 787257076.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 670752787 - 2¹¹ = 670750739 is a prime.

It is a super-3 number, since 3×670752787³ (a number of 27 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 670752787.

It is not a weakly prime, because it can be changed into another prime (670752707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335376393 + 335376394.

It is an arithmetic number, because the mean of its divisors is an integer number (335376394).

Almost surely, 2^670752787 is an apocalyptic number.

670752787 is a deficient number, since it is larger than the sum of its proper divisors (1).

670752787 is an equidigital number, since it uses as much as digits as its factorization.

670752787 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152480, while the sum is 49.

The square root of 670752787 is about 25898.8954783790. The cubic root of 670752787 is about 875.3616081443.

The spelling of 670752787 in words is "six hundred seventy million, seven hundred fifty-two thousand, seven hundred eighty-seven".