70936689 has 8 divisors (see below), whose sum is σ = 94932352. Its totient is φ = 47116080.

The previous prime is 70936687. The next prime is 70936721. The reversal of 70936689 is 98663907.

It is a happy number.

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

It is not a de Polignac number, because 70936689 - 2¹ = 70936687 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70936687) 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, 42814 + ... + 44439.

It is an arithmetic number, because the mean of its divisors is an integer number (11866544).

Almost surely, 2^70936689 is an apocalyptic number.

It is an amenable number.

70936689 is a deficient number, since it is larger than the sum of its proper divisors (23995663).

70936689 is a wasteful number, since it uses less digits than its factorization.

70936689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87527.

The product of its (nonzero) digits is 489888, while the sum is 48.

The square root of 70936689 is about 8422.3921186323. The cubic root of 70936689 is about 413.9586588512.

The spelling of 70936689 in words is "seventy million, nine hundred thirty-six thousand, six hundred eighty-nine".