78548434 has 8 divisors (see below), whose sum is σ = 117908208. Its totient is φ = 39245700.

The previous prime is 78548423. The next prime is 78548441. The reversal of 78548434 is 43484587.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10632 + ... + 16435.

It is an arithmetic number, because the mean of its divisors is an integer number (14738526).

Almost surely, 2^78548434 is an apocalyptic number.

78548434 is a deficient number, since it is larger than the sum of its proper divisors (39359774).

78548434 is a wasteful number, since it uses less digits than its factorization.

78548434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28520.

The product of its digits is 430080, while the sum is 43.

The square root of 78548434 is about 8862.7554406065. The cubic root of 78548434 is about 428.2649282712.

The spelling of 78548434 in words is "seventy-eight million, five hundred forty-eight thousand, four hundred thirty-four".