61342387 has 2 divisors, whose sum is σ = 61342388. Its totient is φ = 61342386.

The previous prime is 61342363. The next prime is 61342423. The reversal of 61342387 is 78324316.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61342387 - 2¹⁹ = 60818099 is a prime.

It is not a weakly prime, because it can be changed into another prime (61342487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30671193 + 30671194.

It is an arithmetic number, because the mean of its divisors is an integer number (30671194).

Almost surely, 2^61342387 is an apocalyptic number.

61342387 is a deficient number, since it is larger than the sum of its proper divisors (1).

61342387 is an equidigital number, since it uses as much as digits as its factorization.

61342387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 34.

The square root of 61342387 is about 7832.1380861167. The cubic root of 61342387 is about 394.3848503295.

The spelling of 61342387 in words is "sixty-one million, three hundred forty-two thousand, three hundred eighty-seven".