478340197 has 8 divisors (see below), whose sum is σ = 488875392. Its totient is φ = 467820000.

The previous prime is 478340189. The next prime is 478340249. The reversal of 478340197 is 791043874.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 478340197 - 2³ = 478340189 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 (478341197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81822 + ... + 87472.

It is an arithmetic number, because the mean of its divisors is an integer number (61109424).

Almost surely, 2^478340197 is an apocalyptic number.

478340197 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

It is an amenable number.

478340197 is a deficient number, since it is larger than the sum of its proper divisors (10535195).

478340197 is a wasteful number, since it uses less digits than its factorization.

478340197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7499.

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 478340197 is about 21870.9898495701. The cubic root of 478340197 is about 782.0699986180.

It can be divided in two parts, 4 and 78340197, that added together give a square (78340201 = 8851²).

The spelling of 478340197 in words is "four hundred seventy-eight million, three hundred forty thousand, one hundred ninety-seven".