77853241 has 8 divisors (see below), whose sum is σ = 82088000. Its totient is φ = 73632240.

The previous prime is 77853239. The next prime is 77853247. The reversal of 77853241 is 14235877.

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 77853241 - 2¹ = 77853239 is a prime.

It is a super-2 number, since 2×77853241² = 12122254268408162, which contains 22 as substring.

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 77853241.

It is not an unprimeable number, because it can be changed into a prime (77853247) 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, 9460 + ... + 15658.

It is an arithmetic number, because the mean of its divisors is an integer number (10261000).

Almost surely, 2^77853241 is an apocalyptic number.

It is an amenable number.

77853241 is a deficient number, since it is larger than the sum of its proper divisors (4234759).

77853241 is a wasteful number, since it uses less digits than its factorization.

77853241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6879.

The product of its digits is 47040, while the sum is 37.

The square root of 77853241 is about 8823.4483621768. The cubic root of 77853241 is about 426.9977293672.

It can be divided in two parts, 7785 and 3241, that added together give a triangular number (11026 = T₁₄₈).

The spelling of 77853241 in words is "seventy-seven million, eight hundred fifty-three thousand, two hundred forty-one".