648495039 has 16 divisors (see below), whose sum is σ = 919103328. Its totient is φ = 405307392.

The previous prime is 648495037. The next prime is 648495053. The reversal of 648495039 is 930594846.

It is not a de Polignac number, because 648495039 - 2¹ = 648495037 is a prime.

It is a super-2 number, since 2×648495039² = 841091631215223042, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648495037) 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, 11632 + ... + 37845.

It is an arithmetic number, because the mean of its divisors is an integer number (57443958).

Almost surely, 2^648495039 is an apocalyptic number.

648495039 is a deficient number, since it is larger than the sum of its proper divisors (270608289).

648495039 is a wasteful number, since it uses less digits than its factorization.

648495039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49754.

The product of its (nonzero) digits is 933120, while the sum is 48.

The square root of 648495039 is about 25465.5657506367. The cubic root of 648495039 is about 865.5700471381.

The spelling of 648495039 in words is "six hundred forty-eight million, four hundred ninety-five thousand, thirty-nine".