649593476 has 12 divisors (see below), whose sum is σ = 1299187008. Its totient is φ = 278397192.

The previous prime is 649593421. The next prime is 649593487. The reversal of 649593476 is 674395946.

649593476 is an admirable number.

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11599856 + ... + 11599911.

It is an arithmetic number, because the mean of its divisors is an integer number (108265584).

Almost surely, 2^649593476 is an apocalyptic number.

It is an amenable number.

649593476 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

649593476 is a wasteful number, since it uses less digits than its factorization.

649593476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23199778 (or 23199776 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 53.

The square root of 649593476 is about 25487.1237294442. The cubic root of 649593476 is about 866.0584794819.

The spelling of 649593476 in words is "six hundred forty-nine million, five hundred ninety-three thousand, four hundred seventy-six".