61816927 has 2 divisors, whose sum is σ = 61816928. Its totient is φ = 61816926.

The previous prime is 61816919. The next prime is 61816933. The reversal of 61816927 is 72961816.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61816927 - 2³ = 61816919 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 61816927.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61816967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30908463 + 30908464.

It is an arithmetic number, because the mean of its divisors is an integer number (30908464).

Almost surely, 2^61816927 is an apocalyptic number.

61816927 is a deficient number, since it is larger than the sum of its proper divisors (1).

61816927 is an equidigital number, since it uses as much as digits as its factorization.

61816927 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 40.

The square root of 61816927 is about 7862.3741325378. The cubic root of 61816927 is about 395.3992161059.

The spelling of 61816927 in words is "sixty-one million, eight hundred sixteen thousand, nine hundred twenty-seven".