65388697 has 16 divisors (see below), whose sum is σ = 73949760. Its totient is φ = 57304000.

The previous prime is 65388677. The next prime is 65388737. The reversal of 65388697 is 79688356.

65388697 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 65388697 - 2¹⁵ = 65355929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65388667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33447 + ... + 35347.

It is an arithmetic number, because the mean of its divisors is an integer number (4621860).

Almost surely, 2^65388697 is an apocalyptic number.

It is an amenable number.

65388697 is a deficient number, since it is larger than the sum of its proper divisors (8561063).

65388697 is a wasteful number, since it uses less digits than its factorization.

65388697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2024.

The product of its digits is 2177280, while the sum is 52.

The square root of 65388697 is about 8086.3277821271. The cubic root of 65388697 is about 402.8724420658.

The spelling of 65388697 in words is "sixty-five million, three hundred eighty-eight thousand, six hundred ninety-seven".