648346905 has 48 divisors (see below), whose sum is σ = 1174567680. Its totient is φ = 330511104.

The previous prime is 648346877. The next prime is 648346913. The reversal of 648346905 is 509643846.

It is not a de Polignac number, because 648346905 - 2¹⁶ = 648281369 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 87381 + ... + 94509.

It is an arithmetic number, because the mean of its divisors is an integer number (24470160).

Almost surely, 2^648346905 is an apocalyptic number.

It is an amenable number.

648346905 is a deficient number, since it is larger than the sum of its proper divisors (526220775).

648346905 is a wasteful number, since it uses less digits than its factorization.

648346905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7230 (or 7227 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The square root of 648346905 is about 25462.6570687350. The cubic root of 648346905 is about 865.5041354966.

The spelling of 648346905 in words is "six hundred forty-eight million, three hundred forty-six thousand, nine hundred five".