77116442 has 8 divisors (see below), whose sum is σ = 124572756. Its totient is φ = 35592192.

The previous prime is 77116433. The next prime is 77116451. The reversal of 77116442 is 24461177.

It is an interprime number because it is at equal distance from previous prime (77116433) and next prime (77116451).

It can be written as a sum of positive squares in 2 ways, for example, as 54922921 + 22193521 = 7411^2 + 4711^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 77116399 and 77116408.

It is an unprimeable number.

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, 1482983 + ... + 1483034.

Almost surely, 2^77116442 is an apocalyptic number.

77116442 is a deficient number, since it is larger than the sum of its proper divisors (47456314).

77116442 is a wasteful number, since it uses less digits than its factorization.

77116442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2966032.

The product of its digits is 9408, while the sum is 32.

The square root of 77116442 is about 8781.5967796295. The cubic root of 77116442 is about 425.6464294244.

The spelling of 77116442 in words is "seventy-seven million, one hundred sixteen thousand, four hundred forty-two".