70065077 has 4 divisors (see below), whose sum is σ = 70098636. Its totient is φ = 70031520.

The previous prime is 70065059. The next prime is 70065097. The reversal of 70065077 is 77056007.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 77056007 = 7 ⋅11008001.

It can be written as a sum of positive squares in 2 ways, for example, as 47416996 + 22648081 = 6886^2 + 4759^2 .

It is a cyclic number.

It is not a de Polignac number, because 70065077 - 2¹⁰ = 70064053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70065097) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13424 + ... + 17897.

It is an arithmetic number, because the mean of its divisors is an integer number (17524659).

Almost surely, 2^70065077 is an apocalyptic number.

It is an amenable number.

70065077 is a deficient number, since it is larger than the sum of its proper divisors (33559).

70065077 is a wasteful number, since it uses less digits than its factorization.

70065077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33558.

The product of its (nonzero) digits is 10290, while the sum is 32.

The square root of 70065077 is about 8370.4884564761. The cubic root of 70065077 is about 412.2562051301.

The spelling of 70065077 in words is "seventy million, sixty-five thousand, seventy-seven".