65343987 has 6 divisors (see below), whose sum is σ = 94385772. Its totient is φ = 43562652.

The previous prime is 65343977. The next prime is 65343997. The reversal of 65343987 is 78934356.

65343987 is a `hidden beast` number, since 6 + 534 + 39 + 87 = 666.

It is an interprime number because it is at equal distance from previous prime (65343977) and next prime (65343997).

It is not a de Polignac number, because 65343987 - 2⁶ = 65343923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65343977) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3630213 + ... + 3630230.

It is an arithmetic number, because the mean of its divisors is an integer number (15730962).

Almost surely, 2^65343987 is an apocalyptic number.

65343987 is a deficient number, since it is larger than the sum of its proper divisors (29041785).

65343987 is a wasteful number, since it uses less digits than its factorization.

65343987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7260449 (or 7260446 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 65343987 is about 8083.5627665034. The cubic root of 65343987 is about 402.7805988032.

The spelling of 65343987 in words is "sixty-five million, three hundred forty-three thousand, nine hundred eighty-seven".