61896587 has 2 divisors, whose sum is σ = 61896588. Its totient is φ = 61896586.

The previous prime is 61896581. The next prime is 61896613. The reversal of 61896587 is 78569816.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61896587 - 2¹⁰ = 61895563 is a prime.

It is a Chen prime.

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

It is not a weakly prime, because it can be changed into another prime (61896581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30948293 + 30948294.

It is an arithmetic number, because the mean of its divisors is an integer number (30948294).

Almost surely, 2^61896587 is an apocalyptic number.

61896587 is a deficient number, since it is larger than the sum of its proper divisors (1).

61896587 is an equidigital number, since it uses as much as digits as its factorization.

61896587 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 725760, while the sum is 50.

The square root of 61896587 is about 7867.4384014112. The cubic root of 61896587 is about 395.5689861192.

The spelling of 61896587 in words is "sixty-one million, eight hundred ninety-six thousand, five hundred eighty-seven".