78920342 has 8 divisors (see below), whose sum is σ = 118449216. Its totient is φ = 39437272.

The previous prime is 78920323. The next prime is 78920381. The reversal of 78920342 is 24302987.

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

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 6758 + ... + 14265.

It is an arithmetic number, because the mean of its divisors is an integer number (14806152).

Almost surely, 2^78920342 is an apocalyptic number.

78920342 is a deficient number, since it is larger than the sum of its proper divisors (39528874).

78920342 is a wasteful number, since it uses less digits than its factorization.

78920342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22902.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 78920342 is about 8883.7121745360. The cubic root of 78920342 is about 428.9397748911.

The spelling of 78920342 in words is "seventy-eight million, nine hundred twenty thousand, three hundred forty-two".