61463887 has 2 divisors, whose sum is σ = 61463888. Its totient is φ = 61463886.

The previous prime is 61463881. The next prime is 61463893. The reversal of 61463887 is 78836416.

It is a balanced prime because it is at equal distance from previous prime (61463881) and next prime (61463893).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61463887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61463881) 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 as a sum of consecutive naturals, namely, 30731943 + 30731944.

It is an arithmetic number, because the mean of its divisors is an integer number (30731944).

Almost surely, 2^61463887 is an apocalyptic number.

61463887 is a deficient number, since it is larger than the sum of its proper divisors (1).

61463887 is an equidigital number, since it uses as much as digits as its factorization.

61463887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 193536, while the sum is 43.

The square root of 61463887 is about 7839.8907517898. The cubic root of 61463887 is about 394.6450627739.

The spelling of 61463887 in words is "sixty-one million, four hundred sixty-three thousand, eight hundred eighty-seven".