78820622 has 8 divisors (see below), whose sum is σ = 118271016. Its totient is φ = 39396952.

The previous prime is 78820597. The next prime is 78820633. The reversal of 78820622 is 22602887.

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, 4313 + ... + 13275.

It is an arithmetic number, because the mean of its divisors is an integer number (14783877).

Almost surely, 2^78820622 is an apocalyptic number.

78820622 is a deficient number, since it is larger than the sum of its proper divisors (39450394).

78820622 is a wasteful number, since it uses less digits than its factorization.

78820622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13362.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 78820622 is about 8878.0978818664. The cubic root of 78820622 is about 428.7590360955.

The spelling of 78820622 in words is "seventy-eight million, eight hundred twenty thousand, six hundred twenty-two".