77846442 has 16 divisors (see below), whose sum is σ = 157664640. Its totient is φ = 25620192.

The previous prime is 77846441. The next prime is 77846479. The reversal of 77846442 is 24464877.

It is a junction number, because it is equal to n+sod(n) for n = 77846394 and 77846403.

It is not an unprimeable number, because it can be changed into a prime (77846441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81643 + ... + 82590.

It is an arithmetic number, because the mean of its divisors is an integer number (9854040).

Almost surely, 2^77846442 is an apocalyptic number.

77846442 is an abundant number, since it is smaller than the sum of its proper divisors (79818198).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77846442 is a wasteful number, since it uses less digits than its factorization.

77846442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164317.

The product of its digits is 301056, while the sum is 42.

The square root of 77846442 is about 8823.0630735590. The cubic root of 77846442 is about 426.9852989617.

The spelling of 77846442 in words is "seventy-seven million, eight hundred forty-six thousand, four hundred forty-two".