648982534 has 4 divisors (see below), whose sum is σ = 973473804. Its totient is φ = 324491266.

The previous prime is 648982511. The next prime is 648982547. The reversal of 648982534 is 435289846.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×648982534² = 842356658874122312, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162245632 + ... + 162245635.

It is an arithmetic number, because the mean of its divisors is an integer number (243368451).

Almost surely, 2^648982534 is an apocalyptic number.

648982534 is a deficient number, since it is larger than the sum of its proper divisors (324491270).

648982534 is a wasteful number, since it uses less digits than its factorization.

648982534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324491269.

The product of its digits is 1658880, while the sum is 49.

The square root of 648982534 is about 25475.1356031720. The cubic root of 648982534 is about 865.7868852813.

The spelling of 648982534 in words is "six hundred forty-eight million, nine hundred eighty-two thousand, five hundred thirty-four".