65772306 has 12 divisors (see below), whose sum is σ = 142506702. Its totient is φ = 21924096.

The previous prime is 65772299. The next prime is 65772307. The reversal of 65772306 is 60327756.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 65464281 + 308025 = 8091^2 + 555^2 .

It is not an unprimeable number, because it can be changed into a prime (65772307) 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, 1826991 + ... + 1827026.

Almost surely, 2^65772306 is an apocalyptic number.

65772306 is an abundant number, since it is smaller than the sum of its proper divisors (76734396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65772306 is a wasteful number, since it uses less digits than its factorization.

65772306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3654025 (or 3654022 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 36.

The square root of 65772306 is about 8110.0127003600. The cubic root of 65772306 is about 403.6587362536.

The spelling of 65772306 in words is "sixty-five million, seven hundred seventy-two thousand, three hundred six".