77611141 has 4 divisors (see below), whose sum is σ = 77642752. Its totient is φ = 77579532.

The previous prime is 77611117. The next prime is 77611153. The reversal of 77611141 is 14111677.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 77611141 - 2⁵ = 77611109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77611111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11781 + ... + 17146.

It is an arithmetic number, because the mean of its divisors is an integer number (19410688).

Almost surely, 2^77611141 is an apocalyptic number.

It is an amenable number.

77611141 is a deficient number, since it is larger than the sum of its proper divisors (31611).

77611141 is a wasteful number, since it uses less digits than its factorization.

77611141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31610.

The product of its digits is 1176, while the sum is 28.

The square root of 77611141 is about 8809.7185539607. The cubic root of 77611141 is about 426.5546585730.

The spelling of 77611141 in words is "seventy-seven million, six hundred eleven thousand, one hundred forty-one".