65491306 has 4 divisors (see below), whose sum is σ = 98236962. Its totient is φ = 32745652.

The previous prime is 65491303. The next prime is 65491319. The reversal of 65491306 is 60319456.

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., 57623281 + 7868025 = 7591^2 + 2805^2 .

It is a super-2 number, since 2×65491306² = 8578222323171272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65491303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16372825 + ... + 16372828.

Almost surely, 2^65491306 is an apocalyptic number.

65491306 is a deficient number, since it is larger than the sum of its proper divisors (32745656).

65491306 is a wasteful number, since it uses less digits than its factorization.

65491306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32745655.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 65491306 is about 8092.6698931811. The cubic root of 65491306 is about 403.0830632496.

The spelling of 65491306 in words is "sixty-five million, four hundred ninety-one thousand, three hundred six".