77069965 has 16 divisors (see below), whose sum is σ = 109342080. Its totient is φ = 51024960.

The previous prime is 77069963. The next prime is 77069983. The reversal of 77069965 is 56996077.

It is not a de Polignac number, because 77069965 - 2¹ = 77069963 is a prime.

It is a super-3 number, since 3×77069965³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77069963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36951 + ... + 38980.

It is an arithmetic number, because the mean of its divisors is an integer number (6833880).

Almost surely, 2^77069965 is an apocalyptic number.

It is an amenable number.

77069965 is a deficient number, since it is larger than the sum of its proper divisors (32272115).

77069965 is a wasteful number, since it uses less digits than its factorization.

77069965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75972.

The product of its (nonzero) digits is 714420, while the sum is 49.

The square root of 77069965 is about 8778.9501080710. The cubic root of 77069965 is about 425.5609018586.

It can be divided in two parts, 7706 and 9965, that added together give a palindrome (17671).

The spelling of 77069965 in words is "seventy-seven million, sixty-nine thousand, nine hundred sixty-five".