478719097 has 4 divisors (see below), whose sum is σ = 486833040. Its totient is φ = 470605156.

The previous prime is 478719091. The next prime is 478719103. The reversal of 478719097 is 790917874.

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, and also an emirpimes, since its reverse is a distinct semiprime: 790917874 = 2 ⋅395458937.

It is an interprime number because it is at equal distance from previous prime (478719091) and next prime (478719103).

It is a cyclic number.

It is not a de Polignac number, because 478719097 - 2¹¹ = 478717049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (478719091) 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, 4056883 + ... + 4057000.

It is an arithmetic number, because the mean of its divisors is an integer number (121708260).

Almost surely, 2^478719097 is an apocalyptic number.

It is an amenable number.

478719097 is a deficient number, since it is larger than the sum of its proper divisors (8113943).

478719097 is an equidigital number, since it uses as much as digits as its factorization.

478719097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8113942.

The product of its (nonzero) digits is 889056, while the sum is 52.

The square root of 478719097 is about 21879.6502942803. The cubic root of 478719097 is about 782.2764403356.

The spelling of 478719097 in words is "four hundred seventy-eight million, seven hundred nineteen thousand, ninety-seven".