61073687 has 2 divisors, whose sum is σ = 61073688. Its totient is φ = 61073686.

The previous prime is 61073653. The next prime is 61073693. The reversal of 61073687 is 78637016.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61073687 - 2¹⁰ = 61072663 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61073687.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61078687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30536843 + 30536844.

It is an arithmetic number, because the mean of its divisors is an integer number (30536844).

Almost surely, 2^61073687 is an apocalyptic number.

61073687 is a deficient number, since it is larger than the sum of its proper divisors (1).

61073687 is an equidigital number, since it uses as much as digits as its factorization.

61073687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 61073687 is about 7814.9655789389. The cubic root of 61073687 is about 393.8081619970.

The spelling of 61073687 in words is "sixty-one million, seventy-three thousand, six hundred eighty-seven".