478067998 has 4 divisors (see below), whose sum is σ = 717102000. Its totient is φ = 239033998.

The previous prime is 478067971. The next prime is 478068049. The reversal of 478067998 is 899760874.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119516998 + ... + 119517001.

It is an arithmetic number, because the mean of its divisors is an integer number (179275500).

Almost surely, 2^478067998 is an apocalyptic number.

478067998 is a deficient number, since it is larger than the sum of its proper divisors (239034002).

478067998 is a wasteful number, since it uses less digits than its factorization.

478067998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239034001.

The product of its (nonzero) digits is 6096384, while the sum is 58.

The square root of 478067998 is about 21864.7661318387. The cubic root of 478067998 is about 781.9216250929.

The spelling of 478067998 in words is "four hundred seventy-eight million, sixty-seven thousand, nine hundred ninety-eight".