78672382 has 4 divisors (see below), whose sum is σ = 118008576. Its totient is φ = 39336190.

The previous prime is 78672367. The next prime is 78672383. The reversal of 78672382 is 28327687.

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 (78672383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19668094 + ... + 19668097.

It is an arithmetic number, because the mean of its divisors is an integer number (29502144).

Almost surely, 2^78672382 is an apocalyptic number.

78672382 is a deficient number, since it is larger than the sum of its proper divisors (39336194).

78672382 is a wasteful number, since it uses less digits than its factorization.

78672382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39336193.

The product of its digits is 225792, while the sum is 43.

The square root of 78672382 is about 8869.7453176515. The cubic root of 78672382 is about 428.4900746426.

The spelling of 78672382 in words is "seventy-eight million, six hundred seventy-two thousand, three hundred eighty-two".