77413771 has 4 divisors (see below), whose sum is σ = 81488200. Its totient is φ = 73339344.

The previous prime is 77413769. The next prime is 77413783. The reversal of 77413771 is 17731477.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17731477 = 151 ⋅117427.

It is a cyclic number.

It is not a de Polignac number, because 77413771 - 2¹ = 77413769 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 77413771.

It is not an unprimeable number, because it can be changed into a prime (77413471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2037186 + ... + 2037223.

It is an arithmetic number, because the mean of its divisors is an integer number (20372050).

Almost surely, 2^77413771 is an apocalyptic number.

77413771 is a deficient number, since it is larger than the sum of its proper divisors (4074429).

77413771 is a wasteful number, since it uses less digits than its factorization.

77413771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4074428.

The product of its digits is 28812, while the sum is 37.

The square root of 77413771 is about 8798.5095896976. The cubic root of 77413771 is about 426.1927665434.

The spelling of 77413771 in words is "seventy-seven million, four hundred thirteen thousand, seven hundred seventy-one".