77620367 has 8 divisors (see below), whose sum is σ = 84892752. Its totient is φ = 70384000.

The previous prime is 77620363. The next prime is 77620379. The reversal of 77620367 is 76302677.

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 77620367 - 2² = 77620363 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 77620367.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77620363) 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, 4388 + ... + 13209.

It is an arithmetic number, because the mean of its divisors is an integer number (10611594).

Almost surely, 2^77620367 is an apocalyptic number.

77620367 is a deficient number, since it is larger than the sum of its proper divisors (7272385).

77620367 is a wasteful number, since it uses less digits than its factorization.

77620367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18009.

The product of its (nonzero) digits is 74088, while the sum is 38.

The square root of 77620367 is about 8810.2421646627. The cubic root of 77620367 is about 426.5715600870.

The spelling of 77620367 in words is "seventy-seven million, six hundred twenty thousand, three hundred sixty-seven".