77471713 has 4 divisors (see below), whose sum is σ = 84514608. Its totient is φ = 70428820.

The previous prime is 77471711. The next prime is 77471717. The reversal of 77471713 is 31717477.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 77471713 - 2¹ = 77471711 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77471711) 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, 3521431 + ... + 3521452.

It is an arithmetic number, because the mean of its divisors is an integer number (21128652).

Almost surely, 2^77471713 is an apocalyptic number.

It is an amenable number.

77471713 is a deficient number, since it is larger than the sum of its proper divisors (7042895).

77471713 is a wasteful number, since it uses less digits than its factorization.

77471713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7042894.

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

The square root of 77471713 is about 8801.8016905631. The cubic root of 77471713 is about 426.2990710699.

The spelling of 77471713 in words is "seventy-seven million, four hundred seventy-one thousand, seven hundred thirteen".