77132305 has 8 divisors (see below), whose sum is σ = 97430400. Its totient is φ = 58458096.

The previous prime is 77132303. The next prime is 77132323. The reversal of 77132305 is 50323177.

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 77132305 - 2¹ = 77132303 is a prime.

It is a super-2 number, since 2×77132305² = 11898784949226050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (77132303) 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 7 ways as a sum of consecutive naturals, for example, 405865 + ... + 406054.

It is an arithmetic number, because the mean of its divisors is an integer number (12178800).

Almost surely, 2^77132305 is an apocalyptic number.

It is an amenable number.

77132305 is a deficient number, since it is larger than the sum of its proper divisors (20298095).

77132305 is a wasteful number, since it uses less digits than its factorization.

77132305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811943.

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

The square root of 77132305 is about 8782.4999288358. The cubic root of 77132305 is about 425.6756128524.

The spelling of 77132305 in words is "seventy-seven million, one hundred thirty-two thousand, three hundred five".