77240027 has 16 divisors (see below), whose sum is σ = 84797280. Its totient is φ = 70067712.

The previous prime is 77239999. The next prime is 77240041. The reversal of 77240027 is 72004277.

It is a cyclic number.

It is not a de Polignac number, because 77240027 - 2¹⁶ = 77174491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77240047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52433 + ... + 53885.

It is an arithmetic number, because the mean of its divisors is an integer number (5299830).

Almost surely, 2^77240027 is an apocalyptic number.

77240027 is a deficient number, since it is larger than the sum of its proper divisors (7557253).

77240027 is a wasteful number, since it uses less digits than its factorization.

77240027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1582.

The product of its (nonzero) digits is 5488, while the sum is 29.

The square root of 77240027 is about 8788.6305531636. The cubic root of 77240027 is about 425.8736850620.

The spelling of 77240027 in words is "seventy-seven million, two hundred forty thousand, twenty-seven".