478899061 has 4 divisors (see below), whose sum is σ = 507069612. Its totient is φ = 450728512.

The previous prime is 478899059. The next prime is 478899073. The reversal of 478899061 is 160998874.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 388838961 + 90060100 = 19719^2 + 9490^2 .

It is a cyclic number.

It is not a de Polignac number, because 478899061 - 2¹ = 478899059 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478899461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14085250 + ... + 14085283.

It is an arithmetic number, because the mean of its divisors is an integer number (126767403).

Almost surely, 2^478899061 is an apocalyptic number.

It is an amenable number.

478899061 is a deficient number, since it is larger than the sum of its proper divisors (28170551).

478899061 is a wasteful number, since it uses less digits than its factorization.

478899061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28170550.

The product of its (nonzero) digits is 870912, while the sum is 52.

The square root of 478899061 is about 21883.7624964264. The cubic root of 478899061 is about 782.3744546412.

The spelling of 478899061 in words is "four hundred seventy-eight million, eight hundred ninety-nine thousand, sixty-one".