65986245 has 80 divisors (see below), whose sum is σ = 129773952. Its totient is φ = 31881600.

The previous prime is 65986243. The next prime is 65986253. The reversal of 65986245 is 54268956.

It is not a de Polignac number, because 65986245 - 2¹ = 65986243 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 65986245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65986243) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 436920 + ... + 437070.

Almost surely, 2^65986245 is an apocalyptic number.

65986245 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

65986245 is a deficient number, since it is larger than the sum of its proper divisors (63787707).

65986245 is a wasteful number, since it uses less digits than its factorization.

65986245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264 (or 255 counting only the distinct ones).

The product of its digits is 518400, while the sum is 45.

The square root of 65986245 is about 8123.1917987944. The cubic root of 65986245 is about 404.0959257397.

It can be divided in two parts, 65 and 986245, that added together give a triangular number (986310 = T₁₄₀₄).

The spelling of 65986245 in words is "sixty-five million, nine hundred eighty-six thousand, two hundred forty-five".