65418986 has 4 divisors (see below), whose sum is σ = 98128482. Its totient is φ = 32709492.

The previous prime is 65418979. The next prime is 65419027. The reversal of 65418986 is 68981456.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 41847961 + 23571025 = 6469^2 + 4855^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 65418986.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16354745 + ... + 16354748.

Almost surely, 2^65418986 is an apocalyptic number.

65418986 is a deficient number, since it is larger than the sum of its proper divisors (32709496).

65418986 is a wasteful number, since it uses less digits than its factorization.

65418986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32709495.

The product of its digits is 414720, while the sum is 47.

The square root of 65418986 is about 8088.2004178927. The cubic root of 65418986 is about 402.9346379310.

The spelling of 65418986 in words is "sixty-five million, four hundred eighteen thousand, nine hundred eighty-six".