77980622 has 8 divisors (see below), whose sum is σ = 118006416. Its totient is φ = 38645152.

The previous prime is 77980601. The next prime is 77980627. The reversal of 77980622 is 22608977.

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

It is a self number, because there is not a number n which added to its sum of digits gives 77980622.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77980627) 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, 172298 + ... + 172749.

It is an arithmetic number, because the mean of its divisors is an integer number (14750802).

Almost surely, 2^77980622 is an apocalyptic number.

77980622 is a deficient number, since it is larger than the sum of its proper divisors (40025794).

77980622 is a wasteful number, since it uses less digits than its factorization.

77980622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345162.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 77980622 is about 8830.6637349635. The cubic root of 77980622 is about 427.2304825128.

The spelling of 77980622 in words is "seventy-seven million, nine hundred eighty thousand, six hundred twenty-two".