61487 has 2 divisors, whose sum is σ = 61488. Its totient is φ = 61486.

The previous prime is 61483. The next prime is 61493. The reversal of 61487 is 78416.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61487 - 2² = 61483 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30743 + 30744.

It is an arithmetic number, because the mean of its divisors is an integer number (30744).

2⁶¹⁴⁸⁷ is an apocalyptic number.

61487 is a deficient number, since it is larger than the sum of its proper divisors (1).

61487 is an equidigital number, since it uses as much as digits as its factorization.

61487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1344, while the sum is 26.

The square root of 61487 is about 247.9657234377. The cubic root of 61487 is about 39.4694524274.

The spelling of 61487 in words is "sixty-one thousand, four hundred eighty-seven".