77054231 has 4 divisors (see below), whose sum is σ = 77774472. Its totient is φ = 76333992.

The previous prime is 77054227. The next prime is 77054267. The reversal of 77054231 is 13245077.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 77054231 - 2² = 77054227 is a prime.

It is a super-2 number, since 2×77054231² = 11874709030002722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 77054194 and 77054203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77054281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 359960 + ... + 360173.

It is an arithmetic number, because the mean of its divisors is an integer number (19443618).

Almost surely, 2^77054231 is an apocalyptic number.

77054231 is a deficient number, since it is larger than the sum of its proper divisors (720241).

77054231 is a wasteful number, since it uses less digits than its factorization.

77054231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720240.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 77054231 is about 8778.0539415066. The cubic root of 77054231 is about 425.5319401616.

The spelling of 77054231 in words is "seventy-seven million, fifty-four thousand, two hundred thirty-one".