77047117 has 8 divisors (see below), whose sum is σ = 88203776. Its totient is φ = 65927952.

The previous prime is 77047051. The next prime is 77047123. The reversal of 77047117 is 71174077.

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 77047117 - 2⁷ = 77046989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77047177) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4818 + ... + 13315.

It is an arithmetic number, because the mean of its divisors is an integer number (11025472).

Almost surely, 2^77047117 is an apocalyptic number.

It is an amenable number.

77047117 is a deficient number, since it is larger than the sum of its proper divisors (11156659).

77047117 is a wasteful number, since it uses less digits than its factorization.

77047117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18747.

The product of its (nonzero) digits is 9604, while the sum is 34.

The square root of 77047117 is about 8777.6487170540. The cubic root of 77047117 is about 425.5188440718.

The spelling of 77047117 in words is "seventy-seven million, forty-seven thousand, one hundred seventeen".