65670077 has 8 divisors (see below), whose sum is σ = 71764320. Its totient is φ = 59596560.

The previous prime is 65670071. The next prime is 65670089. The reversal of 65670077 is 77007656.

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

It is a cyclic number.

It is not a de Polignac number, because 65670077 - 2⁶ = 65670013 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65670077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65670071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1874 + ... + 11612.

It is an arithmetic number, because the mean of its divisors is an integer number (8970540).

Almost surely, 2^65670077 is an apocalyptic number.

It is an amenable number.

65670077 is a deficient number, since it is larger than the sum of its proper divisors (6094243).

65670077 is a wasteful number, since it uses less digits than its factorization.

65670077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10363.

The product of its (nonzero) digits is 61740, while the sum is 38.

The square root of 65670077 is about 8103.7076082494. The cubic root of 65670077 is about 403.4494940488.

The spelling of 65670077 in words is "sixty-five million, six hundred seventy thousand, seventy-seven".