77043061 has 8 divisors (see below), whose sum is σ = 79006104. Its totient is φ = 75102720.

The previous prime is 77043041. The next prime is 77043067. The reversal of 77043061 is 16034077.

It can be written as a sum of positive squares in 4 ways, for example, as 42436 + 77000625 = 206^2 + 8775^2 .

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 77043061 - 2¹³ = 77034869 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 (77043067) 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, 1305 + ... + 12481.

It is an arithmetic number, because the mean of its divisors is an integer number (9875763).

Almost surely, 2^77043061 is an apocalyptic number.

It is an amenable number.

77043061 is a deficient number, since it is larger than the sum of its proper divisors (1963043).

77043061 is a wasteful number, since it uses less digits than its factorization.

77043061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11351.

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 77043061 is about 8777.4176726415. The cubic root of 77043061 is about 425.5113770620.

The spelling of 77043061 in words is "seventy-seven million, forty-three thousand, sixty-one".