78432794 has 8 divisors (see below), whose sum is σ = 128344608. Its totient is φ = 35651260.

The previous prime is 78432773. The next prime is 78432797. The reversal of 78432794 is 49723487.

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

It is not an unprimeable number, because it can be changed into a prime (78432797) 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, 1782542 + ... + 1782585.

It is an arithmetic number, because the mean of its divisors is an integer number (16043076).

Almost surely, 2^78432794 is an apocalyptic number.

78432794 is a deficient number, since it is larger than the sum of its proper divisors (49911814).

78432794 is a wasteful number, since it uses less digits than its factorization.

78432794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3565140.

The product of its digits is 338688, while the sum is 44.

The square root of 78432794 is about 8856.2291072442. The cubic root of 78432794 is about 428.0546593656.

The spelling of 78432794 in words is "seventy-eight million, four hundred thirty-two thousand, seven hundred ninety-four".