70517089 has 8 divisors (see below), whose sum is σ = 72956520. Its totient is φ = 68112000.

The previous prime is 70517087. The next prime is 70517101. The reversal of 70517089 is 98071507.

70517089 is nontrivially palindromic in base 2.

It can be written as a sum of positive squares in 4 ways, for example, as 20178064 + 50339025 = 4492^2 + 7095^2 .

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 70517089 - 2¹ = 70517087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70517087) 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, 4374 + ... + 12655.

It is an arithmetic number, because the mean of its divisors is an integer number (9119565).

Almost surely, 2^70517089 is an apocalyptic number.

It is an amenable number.

70517089 is a deficient number, since it is larger than the sum of its proper divisors (2439431).

70517089 is a wasteful number, since it uses less digits than its factorization.

70517089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17171.

The product of its (nonzero) digits is 17640, while the sum is 37.

The square root of 70517089 is about 8397.4453853538. The cubic root of 70517089 is about 413.1408372789.

The spelling of 70517089 in words is "seventy million, five hundred seventeen thousand, eighty-nine".