77857341 has 8 divisors (see below), whose sum is σ = 104880384. Its totient is φ = 51369600.

The previous prime is 77857301. The next prime is 77857397. The reversal of 77857341 is 14375877.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 77857341 - 2⁹ = 77856829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 77857293 and 77857302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77857301) 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, 133485 + ... + 134066.

It is an arithmetic number, because the mean of its divisors is an integer number (13110048).

Almost surely, 2^77857341 is an apocalyptic number.

It is an amenable number.

77857341 is a deficient number, since it is larger than the sum of its proper divisors (27023043).

77857341 is a wasteful number, since it uses less digits than its factorization.

77857341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267651.

The product of its digits is 164640, while the sum is 42.

The square root of 77857341 is about 8823.6806945855. The cubic root of 77857341 is about 427.0052249231.

The spelling of 77857341 in words is "seventy-seven million, eight hundred fifty-seven thousand, three hundred forty-one".