65980487 has 2 divisors, whose sum is σ = 65980488. Its totient is φ = 65980486.

The previous prime is 65980471. The next prime is 65980511. The reversal of 65980487 is 78408956.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65980487 - 2⁴ = 65980471 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 (65980427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32990243 + 32990244.

It is an arithmetic number, because the mean of its divisors is an integer number (32990244).

Almost surely, 2^65980487 is an apocalyptic number.

65980487 is a deficient number, since it is larger than the sum of its proper divisors (1).

65980487 is an equidigital number, since it uses as much as digits as its factorization.

65980487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 483840, while the sum is 47.

The square root of 65980487 is about 8122.8373737260. The cubic root of 65980487 is about 404.0841715121.

The spelling of 65980487 in words is "sixty-five million, nine hundred eighty thousand, four hundred eighty-seven".