647060746 has 4 divisors (see below), whose sum is σ = 970591122. Its totient is φ = 323530372.

The previous prime is 647060693. The next prime is 647060747.

647060746 is nontrivially palindromic in base 10.

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

It can be written as a sum of positive squares in only one way, i.e., 463756225 + 183304521 = 21535^2 + 13539^2 .

It is a junction number, because it is equal to n+sod(n) for n = 647060699 and 647060708.

It is not an unprimeable number, because it can be changed into a prime (647060747) by changing a digit.

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, 161765185 + ... + 161765188.

Almost surely, 2^647060746 is an apocalyptic number.

647060746 is a deficient number, since it is larger than the sum of its proper divisors (323530376).

647060746 is a wasteful number, since it uses less digits than its factorization.

647060746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323530375.

The product of its (nonzero) digits is 169344, while the sum is 40.

The square root of 647060746 is about 25437.3887417714. The cubic root of 647060746 is about 864.9314416578.

The spelling of 647060746 in words is "six hundred forty-seven million, sixty thousand, seven hundred forty-six".