478664097 has 4 divisors (see below), whose sum is σ = 638218800. Its totient is φ = 319109396.

The previous prime is 478664059. The next prime is 478664101. The reversal of 478664097 is 790466874.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 478664097 - 2¹² = 478660001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (478664297) 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, 79777347 + ... + 79777352.

It is an arithmetic number, because the mean of its divisors is an integer number (159554700).

Almost surely, 2^478664097 is an apocalyptic number.

It is an amenable number.

478664097 is a deficient number, since it is larger than the sum of its proper divisors (159554703).

478664097 is a wasteful number, since it uses less digits than its factorization.

478664097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159554702.

The product of its (nonzero) digits is 2032128, while the sum is 51.

The square root of 478664097 is about 21878.3933825133. The cubic root of 478664097 is about 782.2464806283.

The spelling of 478664097 in words is "four hundred seventy-eight million, six hundred sixty-four thousand, ninety-seven".