77394476 has 12 divisors (see below), whose sum is σ = 139809600. Its totient is φ = 37448880.

The previous prime is 77394463. The next prime is 77394479. The reversal of 77394476 is 67449377.

It is a self number, because there is not a number n which added to its sum of digits gives 77394476.

It is not an unprimeable number, because it can be changed into a prime (77394479) by changing a digit.

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, 311951 + ... + 312198.

It is an arithmetic number, because the mean of its divisors is an integer number (11650800).

Almost surely, 2^77394476 is an apocalyptic number.

It is an amenable number.

77394476 is a deficient number, since it is larger than the sum of its proper divisors (62415124).

77394476 is a wasteful number, since it uses less digits than its factorization.

77394476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624184 (or 624182 counting only the distinct ones).

The product of its digits is 889056, while the sum is 47.

The square root of 77394476 is about 8797.4130288398. The cubic root of 77394476 is about 426.1573547873.

The spelling of 77394476 in words is "seventy-seven million, three hundred ninety-four thousand, four hundred seventy-six".