77105297 has 8 divisors (see below), whose sum is σ = 79252992. Its totient is φ = 74970400.

The previous prime is 77105279. The next prime is 77105309. The reversal of 77105297 is 79250177.

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 77105297 - 2¹⁶ = 77039761 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 77105297.

It is not an unprimeable number, because it can be changed into a prime (77105207) 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, 9728 + ... + 15774.

It is an arithmetic number, because the mean of its divisors is an integer number (9906624).

Almost surely, 2^77105297 is an apocalyptic number.

It is an amenable number.

77105297 is a deficient number, since it is larger than the sum of its proper divisors (2147695).

77105297 is a wasteful number, since it uses less digits than its factorization.

77105297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6399.

The product of its (nonzero) digits is 30870, while the sum is 38.

The square root of 77105297 is about 8780.9621910130. The cubic root of 77105297 is about 425.6259233867.

The spelling of 77105297 in words is "seventy-seven million, one hundred five thousand, two hundred ninety-seven".