77120697 has 8 divisors (see below), whose sum is σ = 104276160. Its totient is φ = 50689520.

The previous prime is 77120663. The next prime is 77120699. The reversal of 77120697 is 79602177.

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 77120697 - 2⁷ = 77120569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77120699) 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, 180822 + ... + 181247.

It is an arithmetic number, because the mean of its divisors is an integer number (13034520).

Almost surely, 2^77120697 is an apocalyptic number.

It is an amenable number.

77120697 is a deficient number, since it is larger than the sum of its proper divisors (27155463).

77120697 is a wasteful number, since it uses less digits than its factorization.

77120697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362143.

The product of its (nonzero) digits is 37044, while the sum is 39.

The square root of 77120697 is about 8781.8390443005. The cubic root of 77120697 is about 425.6542578122.

The spelling of 77120697 in words is "seventy-seven million, one hundred twenty thousand, six hundred ninety-seven".