648340627 has 18 divisors (see below), whose sum is σ = 731283476. Its totient is φ = 574062720.

The previous prime is 648340613. The next prime is 648340631. The reversal of 648340627 is 726043846.

It is a happy number.

It is not a de Polignac number, because 648340627 - 2¹⁵ = 648307859 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 648340627.

It is not an unprimeable number, because it can be changed into a prime (648370627) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1836483 + ... + 1836835.

Almost surely, 2^648340627 is an apocalyptic number.

648340627 is a deficient number, since it is larger than the sum of its proper divisors (82942849).

648340627 is an equidigital number, since it uses as much as digits as its factorization.

648340627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771 (or 407 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 40.

The square root of 648340627 is about 25462.5337898647. The cubic root of 648340627 is about 865.5013419034.

The spelling of 648340627 in words is "six hundred forty-eight million, three hundred forty thousand, six hundred twenty-seven".