647196479 has 4 divisors (see below), whose sum is σ = 647258976. Its totient is φ = 647133984.

The previous prime is 647196469. The next prime is 647196493. The reversal of 647196479 is 974691746.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 647196479 - 2⁴ = 647196463 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 647196479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (647196469) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 11594 + ... + 37799.

It is an arithmetic number, because the mean of its divisors is an integer number (161814744).

Almost surely, 2^647196479 is an apocalyptic number.

647196479 is a deficient number, since it is larger than the sum of its proper divisors (62497).

647196479 is a wasteful number, since it uses less digits than its factorization.

647196479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62496.

The product of its digits is 2286144, while the sum is 53.

The square root of 647196479 is about 25440.0565840566. The cubic root of 647196479 is about 864.9919159034.

The spelling of 647196479 in words is "six hundred forty-seven million, one hundred ninety-six thousand, four hundred seventy-nine".