78932146 has 8 divisors (see below), whose sum is σ = 118959984. Its totient is φ = 39278820.

The previous prime is 78932143. The next prime is 78932179. The reversal of 78932146 is 64123987.

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

It is a junction number, because it is equal to n+sod(n) for n = 78932099 and 78932108.

It is not an unprimeable number, because it can be changed into a prime (78932141) 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, 93100 + ... + 93943.

It is an arithmetic number, because the mean of its divisors is an integer number (14869998).

Almost surely, 2^78932146 is an apocalyptic number.

78932146 is a deficient number, since it is larger than the sum of its proper divisors (40027838).

78932146 is a wasteful number, since it uses less digits than its factorization.

78932146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187256.

The product of its digits is 72576, while the sum is 40.

The square root of 78932146 is about 8884.3765116073. The cubic root of 78932146 is about 428.9611591230.

The spelling of 78932146 in words is "seventy-eight million, nine hundred thirty-two thousand, one hundred forty-six".