873547478 has 4 divisors (see below), whose sum is σ = 1310321220. Its totient is φ = 436773738.

The previous prime is 873547471. The next prime is 873547487. The reversal of 873547478 is 874745378.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (873547471) 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 as a sum of consecutive naturals, namely, 218386868 + ... + 218386871.

It is an arithmetic number, because the mean of its divisors is an integer number (327580305).

Almost surely, 2^873547478 is an apocalyptic number.

873547478 is a deficient number, since it is larger than the sum of its proper divisors (436773742).

873547478 is a wasteful number, since it uses less digits than its factorization.

873547478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436773741.

The product of its digits is 5268480, while the sum is 53.

The square root of 873547478 is about 29555.8366147873. The cubic root of 873547478 is about 955.9360459484.

The spelling of 873547478 in words is "eight hundred seventy-three million, five hundred forty-seven thousand, four hundred seventy-eight".