77682241 has 32 divisors (see below), whose sum is σ = 101606400. Its totient is φ = 57672000.

The previous prime is 77682233. The next prime is 77682257. The reversal of 77682241 is 14228677.

It is a cyclic number.

It is not a de Polignac number, because 77682241 - 2³ = 77682233 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 77682241.

It is not an unprimeable number, because it can be changed into a prime (77682281) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 309366 + ... + 309616.

It is an arithmetic number, because the mean of its divisors is an integer number (3175200).

Almost surely, 2^77682241 is an apocalyptic number.

It is an amenable number.

77682241 is a deficient number, since it is larger than the sum of its proper divisors (23924159).

77682241 is a wasteful number, since it uses less digits than its factorization.

77682241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469.

The product of its digits is 37632, while the sum is 37.

The square root of 77682241 is about 8813.7529463901. The cubic root of 77682241 is about 426.6848751859.

The spelling of 77682241 in words is "seventy-seven million, six hundred eighty-two thousand, two hundred forty-one".