70689641 has 8 divisors (see below), whose sum is σ = 79603968. Its totient is φ = 62190000.

The previous prime is 70689631. The next prime is 70689643. The reversal of 70689641 is 14698607.

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 70689641 - 2¹⁰ = 70688617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70689643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103310 + ... + 103991.

It is an arithmetic number, because the mean of its divisors is an integer number (9950496).

Almost surely, 2^70689641 is an apocalyptic number.

It is an amenable number.

70689641 is a deficient number, since it is larger than the sum of its proper divisors (8914327).

70689641 is a wasteful number, since it uses less digits than its factorization.

70689641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207343.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 70689641 is about 8407.7131849273. The cubic root of 70689641 is about 413.4775415271.

The spelling of 70689641 in words is "seventy million, six hundred eighty-nine thousand, six hundred forty-one".