77320135 has 8 divisors (see below), whose sum is σ = 96818400. Its totient is φ = 59166624.

The previous prime is 77320129. The next prime is 77320141. The reversal of 77320135 is 53102377.

It is an interprime number because it is at equal distance from previous prime (77320129) and next prime (77320141).

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

It is a cyclic number.

It is not a de Polignac number, because 77320135 - 2⁹ = 77319623 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 336060 + ... + 336289.

It is an arithmetic number, because the mean of its divisors is an integer number (12102300).

Almost surely, 2^77320135 is an apocalyptic number.

77320135 is a deficient number, since it is larger than the sum of its proper divisors (19498265).

77320135 is a wasteful number, since it uses less digits than its factorization.

77320135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672377.

The product of its (nonzero) digits is 4410, while the sum is 28.

The square root of 77320135 is about 8793.1868511934. The cubic root of 77320135 is about 426.0208630778.

The spelling of 77320135 in words is "seventy-seven million, three hundred twenty thousand, one hundred thirty-five".