61085623 has 2 divisors, whose sum is σ = 61085624. Its totient is φ = 61085622.

The previous prime is 61085617. The next prime is 61085639. The reversal of 61085623 is 32658016.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61085623 - 2¹³ = 61077431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61085683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30542811 + 30542812.

It is an arithmetic number, because the mean of its divisors is an integer number (30542812).

Almost surely, 2^61085623 is an apocalyptic number.

61085623 is a deficient number, since it is larger than the sum of its proper divisors (1).

61085623 is an equidigital number, since it uses as much as digits as its factorization.

61085623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 61085623 is about 7815.7292046232. The cubic root of 61085623 is about 393.8338150961.

The spelling of 61085623 in words is "sixty-one million, eighty-five thousand, six hundred twenty-three".