77070841 has 3 divisors (see below), whose sum is σ = 77079621. Its totient is φ = 77062062.

The previous prime is 77070827. The next prime is 77070863. The reversal of 77070841 is 14807077.

The square root of 77070841 is 8779.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 77070841 - 2¹¹ = 77068793 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 77070797 and 77070806.

It is not an unprimeable number, because it can be changed into a prime (77070811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 4390 + ... + 13168.

It is an arithmetic number, because the mean of its divisors is an integer number (25693207).

Almost surely, 2^77070841 is an apocalyptic number.

77070841 is the 8779-th square number.

77070841 is the 4390-th centered octagonal number.

It is an amenable number.

77070841 is a deficient number, since it is larger than the sum of its proper divisors (8780).

77070841 is an frugal number, since it uses more digits than its factorization.

77070841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17558 (or 8779 counting only the distinct ones).

The product of its (nonzero) digits is 10976, while the sum is 34.

The cubic root of 77070841 is about 425.5625142028.

The spelling of 77070841 in words is "seventy-seven million, seventy thousand, eight hundred forty-one".