648953288 has 32 divisors (see below), whose sum is σ = 1234323360. Its totient is φ = 319831680.

The previous prime is 648953281. The next prime is 648953309. The reversal of 648953288 is 882359846.

It is a super-2 number, since 2×648953288² = 842280740012021888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (648953281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178820 + ... + 182412.

It is an arithmetic number, because the mean of its divisors is an integer number (38572605).

Almost surely, 2^648953288 is an apocalyptic number.

It is an amenable number.

648953288 is a deficient number, since it is larger than the sum of its proper divisors (585370072).

648953288 is a wasteful number, since it uses less digits than its factorization.

648953288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3917 (or 3913 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 53.

The square root of 648953288 is about 25474.5615860215. The cubic root of 648953288 is about 865.7738797009.

The spelling of 648953288 in words is "six hundred forty-eight million, nine hundred fifty-three thousand, two hundred eighty-eight".