77663414 has 4 divisors (see below), whose sum is σ = 116495124. Its totient is φ = 38831706.

The previous prime is 77663413. The next prime is 77663437. The reversal of 77663414 is 41436677.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77663413) 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 as a sum of consecutive naturals, namely, 19415852 + ... + 19415855.

It is an arithmetic number, because the mean of its divisors is an integer number (29123781).

Almost surely, 2^77663414 is an apocalyptic number.

77663414 is a deficient number, since it is larger than the sum of its proper divisors (38831710).

77663414 is a wasteful number, since it uses less digits than its factorization.

77663414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38831709.

The product of its digits is 84672, while the sum is 38.

The square root of 77663414 is about 8812.6848349411. The cubic root of 77663414 is about 426.6504020764.

The spelling of 77663414 in words is "seventy-seven million, six hundred sixty-three thousand, four hundred fourteen".