77984011 has 4 divisors (see below), whose sum is σ = 89124592. Its totient is φ = 66843432.

The previous prime is 77983993. The next prime is 77984029. The reversal of 77984011 is 11048977.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11048977 = 37 ⋅298621.

It is an interprime number because it is at equal distance from previous prime (77983993) and next prime (77984029).

It is a cyclic number.

It is not a de Polignac number, because 77984011 - 2⁷ = 77983883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77984051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5570280 + ... + 5570293.

It is an arithmetic number, because the mean of its divisors is an integer number (22281148).

Almost surely, 2^77984011 is an apocalyptic number.

77984011 is a deficient number, since it is larger than the sum of its proper divisors (11140581).

77984011 is a wasteful number, since it uses less digits than its factorization.

77984011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11140580.

The product of its (nonzero) digits is 14112, while the sum is 37.

The square root of 77984011 is about 8830.8556210596. The cubic root of 77984011 is about 427.2366714997.

The spelling of 77984011 in words is "seventy-seven million, nine hundred eighty-four thousand, eleven".