70752665 has 4 divisors (see below), whose sum is σ = 84903204. Its totient is φ = 56602128.

The previous prime is 70752641. The next prime is 70752667. The reversal of 70752665 is 56625707.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56625707 = 6389 ⋅8863.

It can be written as a sum of positive squares in 2 ways, for example, as 26183689 + 44568976 = 5117^2 + 6676^2 .

It is a cyclic number.

It is not a de Polignac number, because 70752665 - 2⁶ = 70752601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70752667) 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, 7075262 + ... + 7075271.

It is an arithmetic number, because the mean of its divisors is an integer number (21225801).

Almost surely, 2^70752665 is an apocalyptic number.

It is an amenable number.

70752665 is a deficient number, since it is larger than the sum of its proper divisors (14150539).

70752665 is a wasteful number, since it uses less digits than its factorization.

70752665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14150538.

The product of its (nonzero) digits is 88200, while the sum is 38.

The square root of 70752665 is about 8411.4603369451. The cubic root of 70752665 is about 413.6003849294.

It can be divided in two parts, 70752 and 665, that added together give a palindrome (71417).

The spelling of 70752665 in words is "seventy million, seven hundred fifty-two thousand, six hundred sixty-five".