648347004 has 60 divisors (see below), whose sum is σ = 1740747624. Its totient is φ = 210270816.

The previous prime is 648346961. The next prime is 648347009. The reversal of 648347004 is 400743846.

648347004 is a `hidden beast` number, since 648 + 3 + 4 + 7 + 0 + 0 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 648347004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648347009) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 15054 + ... + 39029.

Almost surely, 2^648347004 is an apocalyptic number.

It is an amenable number.

648347004 is an abundant number, since it is smaller than the sum of its proper divisors (1092400620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

648347004 is a wasteful number, since it uses less digits than its factorization.

648347004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54136 (or 54125 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The square root of 648347004 is about 25462.6590127583. The cubic root of 648347004 is about 865.5041795496.

It can be divided in two parts, 64834700 and 4, that added together give a square (64834704 = 8052²).

The spelling of 648347004 in words is "six hundred forty-eight million, three hundred forty-seven thousand, four".