648354598 has 4 divisors (see below), whose sum is σ = 972531900. Its totient is φ = 324177298.

The previous prime is 648354547. The next prime is 648354611. The reversal of 648354598 is 895453846.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162088648 + ... + 162088651.

It is an arithmetic number, because the mean of its divisors is an integer number (243132975).

Almost surely, 2^648354598 is an apocalyptic number.

648354598 is a deficient number, since it is larger than the sum of its proper divisors (324177302).

648354598 is a wasteful number, since it uses less digits than its factorization.

648354598 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324177301.

The product of its digits is 4147200, while the sum is 52.

The square root of 648354598 is about 25462.8081326471. The cubic root of 648354598 is about 865.5075587139.

The spelling of 648354598 in words is "six hundred forty-eight million, three hundred fifty-four thousand, five hundred ninety-eight".