647487374 has 16 divisors (see below), whose sum is σ = 976134240. Its totient is φ = 322114080.

The previous prime is 647487353. The next prime is 647487391. The reversal of 647487374 is 473784746.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 468164 + ... + 469544.

It is an arithmetic number, because the mean of its divisors is an integer number (61008390).

Almost surely, 2^647487374 is an apocalyptic number.

647487374 is a deficient number, since it is larger than the sum of its proper divisors (328646866).

647487374 is a wasteful number, since it uses less digits than its factorization.

647487374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2395.

The product of its digits is 3161088, while the sum is 50.

The square root of 647487374 is about 25445.7732049942. The cubic root of 647487374 is about 865.1214922851.

The spelling of 647487374 in words is "six hundred forty-seven million, four hundred eighty-seven thousand, three hundred seventy-four".