648932067 has 40 divisors (see below), whose sum is σ = 1110780000. Its totient is φ = 369847296.

The previous prime is 648932059. The next prime is 648932077. The reversal of 648932067 is 760239846.

It is not a de Polignac number, because 648932067 - 2³ = 648932059 is a prime.

It is a super-2 number, since 2×648932067² = 842225655161784978, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (648932017) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 253309 + ... + 255857.

It is an arithmetic number, because the mean of its divisors is an integer number (27769500).

Almost surely, 2^648932067 is an apocalyptic number.

648932067 is a deficient number, since it is larger than the sum of its proper divisors (461847933).

648932067 is a wasteful number, since it uses less digits than its factorization.

648932067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3017 (or 3008 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The square root of 648932067 is about 25474.1450690695. The cubic root of 648932067 is about 865.7644425615.

The spelling of 648932067 in words is "six hundred forty-eight million, nine hundred thirty-two thousand, sixty-seven".