647432054 has 4 divisors (see below), whose sum is σ = 971148084. Its totient is φ = 323716026.

The previous prime is 647432053. The next prime is 647432059. The reversal of 647432054 is 450234746.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (647432053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161858012 + ... + 161858015.

It is an arithmetic number, because the mean of its divisors is an integer number (242787021).

Almost surely, 2^647432054 is an apocalyptic number.

647432054 is a deficient number, since it is larger than the sum of its proper divisors (323716030).

647432054 is a wasteful number, since it uses less digits than its factorization.

647432054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323716029.

The product of its (nonzero) digits is 80640, while the sum is 35.

The square root of 647432054 is about 25444.6861643055. The cubic root of 647432054 is about 865.0968535117.

The spelling of 647432054 in words is "six hundred forty-seven million, four hundred thirty-two thousand, fifty-four".