647607423 has 32 divisors (see below), whose sum is σ = 905748480. Its totient is φ = 411215360.

The previous prime is 647607421. The next prime is 647607431. The reversal of 647607423 is 324706746.

It is a cyclic number.

It is not a de Polignac number, because 647607423 - 2¹ = 647607421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (647607421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1690690 + ... + 1691072.

It is an arithmetic number, because the mean of its divisors is an integer number (28304640).

Almost surely, 2^647607423 is an apocalyptic number.

647607423 is a deficient number, since it is larger than the sum of its proper divisors (258141057).

647607423 is a wasteful number, since it uses less digits than its factorization.

647607423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719.

The product of its (nonzero) digits is 169344, while the sum is 39.

The square root of 647607423 is about 25448.1320139613. The cubic root of 647607423 is about 865.1749556453.

The spelling of 647607423 in words is "six hundred forty-seven million, six hundred seven thousand, four hundred twenty-three".