648242007 has 16 divisors (see below), whose sum is σ = 992485632. Its totient is φ = 368665920.

The previous prime is 648242003. The next prime is 648242029. The reversal of 648242007 is 700242846.

It is not a de Polignac number, because 648242007 - 2² = 648242003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648242003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68718 + ... + 77579.

It is an arithmetic number, because the mean of its divisors is an integer number (62030352).

Almost surely, 2^648242007 is an apocalyptic number.

648242007 is a deficient number, since it is larger than the sum of its proper divisors (344243625).

648242007 is a wasteful number, since it uses less digits than its factorization.

648242007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146518.

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 648242007 is about 25460.5971453931. The cubic root of 648242007 is about 865.4574554714.

The spelling of 648242007 in words is "six hundred forty-eight million, two hundred forty-two thousand, seven".