478517741 has 4 divisors (see below), whose sum is σ = 515326812. Its totient is φ = 441708672.

The previous prime is 478517731. The next prime is 478517749. The reversal of 478517741 is 147715874.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 147715874 = 2 ⋅73857937.

It can be written as a sum of positive squares in 2 ways, for example, as 70073641 + 408444100 = 8371^2 + 20210^2 .

It is a cyclic number.

It is not a de Polignac number, because 478517741 - 2¹⁴ = 478501357 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 478517692 and 478517701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478517749) 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, 18404516 + ... + 18404541.

It is an arithmetic number, because the mean of its divisors is an integer number (128831703).

Almost surely, 2^478517741 is an apocalyptic number.

It is an amenable number.

478517741 is a deficient number, since it is larger than the sum of its proper divisors (36809071).

478517741 is a wasteful number, since it uses less digits than its factorization.

478517741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36809070.

The product of its digits is 219520, while the sum is 44.

The square root of 478517741 is about 21875.0483656608. The cubic root of 478517741 is about 782.1667461220.

The spelling of 478517741 in words is "four hundred seventy-eight million, five hundred seventeen thousand, seven hundred forty-one".