477728039 has 4 divisors (see below), whose sum is σ = 502871640. Its totient is φ = 452584440.

The previous prime is 477728021. The next prime is 477728047. The reversal of 477728039 is 930827774.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-477728039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 477727984 and 477728002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (477721039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12571772 + ... + 12571809.

It is an arithmetic number, because the mean of its divisors is an integer number (125717910).

Almost surely, 2^477728039 is an apocalyptic number.

477728039 is a deficient number, since it is larger than the sum of its proper divisors (25143601).

477728039 is a wasteful number, since it uses less digits than its factorization.

477728039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25143600.

The product of its (nonzero) digits is 592704, while the sum is 47.

The square root of 477728039 is about 21856.9906208517. The cubic root of 477728039 is about 781.7362370106.

The spelling of 477728039 in words is "four hundred seventy-seven million, seven hundred twenty-eight thousand, thirty-nine".