61077047 has 8 divisors (see below), whose sum is σ = 63211632. Its totient is φ = 58968000.

The previous prime is 61077019. The next prime is 61077053. The reversal of 61077047 is 74077016.

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 61077047 - 2¹⁰ = 61076023 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 (61077007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1454 + ... + 11147.

It is an arithmetic number, because the mean of its divisors is an integer number (7901454).

Almost surely, 2^61077047 is an apocalyptic number.

61077047 is a deficient number, since it is larger than the sum of its proper divisors (2134585).

61077047 is a wasteful number, since it uses less digits than its factorization.

61077047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12769.

The product of its (nonzero) digits is 8232, while the sum is 32.

The square root of 61077047 is about 7815.1805481383. The cubic root of 61077047 is about 393.8153837168.

The spelling of 61077047 in words is "sixty-one million, seventy-seven thousand, forty-seven".