65122977 has 8 divisors (see below), whose sum is σ = 87145216. Its totient is φ = 43258032.

The previous prime is 65122973. The next prime is 65123011. The reversal of 65122977 is 77922156.

65122977 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 65122977 - 2² = 65122973 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65122973) 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 7 ways as a sum of consecutive naturals, for example, 38353 + ... + 40014.

It is an arithmetic number, because the mean of its divisors is an integer number (10893152).

Almost surely, 2^65122977 is an apocalyptic number.

It is an amenable number.

65122977 is a deficient number, since it is larger than the sum of its proper divisors (22022239).

65122977 is a wasteful number, since it uses less digits than its factorization.

65122977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78647.

The product of its digits is 52920, while the sum is 39.

The square root of 65122977 is about 8069.8808541390. The cubic root of 65122977 is about 402.3259836995.

The spelling of 65122977 in words is "sixty-five million, one hundred twenty-two thousand, nine hundred seventy-seven".