648237475 has 12 divisors (see below), whose sum is σ = 804358984. Its totient is φ = 518238720.

The previous prime is 648237467. The next prime is 648237479. The reversal of 648237475 is 574732846.

It is not a de Polignac number, because 648237475 - 2³ = 648237467 is a prime.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (648237479) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32707 + ... + 48643.

Almost surely, 2^648237475 is an apocalyptic number.

648237475 is a deficient number, since it is larger than the sum of its proper divisors (156121509).

648237475 is a wasteful number, since it uses less digits than its factorization.

648237475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17574 (or 17569 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 46.

The square root of 648237475 is about 25460.5081449684. The cubic root of 648237475 is about 865.4554386000.

The spelling of 648237475 in words is "six hundred forty-eight million, two hundred thirty-seven thousand, four hundred seventy-five".