77109452 has 12 divisors (see below), whose sum is σ = 154218960. Its totient is φ = 33046896.

The previous prime is 77109427. The next prime is 77109457. The reversal of 77109452 is 25490177.

77109452 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (77109457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1376927 + ... + 1376982.

It is an arithmetic number, because the mean of its divisors is an integer number (12851580).

Almost surely, 2^77109452 is an apocalyptic number.

It is an amenable number.

77109452 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

77109452 is a wasteful number, since it uses less digits than its factorization.

77109452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2753920 (or 2753918 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 77109452 is about 8781.1987792100. The cubic root of 77109452 is about 425.6335685335.

The spelling of 77109452 in words is "seventy-seven million, one hundred nine thousand, four hundred fifty-two".