70018684 has 12 divisors (see below), whose sum is σ = 122712408. Its totient is φ = 34958000.

The previous prime is 70018651. The next prime is 70018687. The reversal of 70018684 is 48681007.

It is a happy number.

It is a super-2 number, since 2×70018684² = 9805232218183712, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70018687) 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 3 ways as a sum of consecutive naturals, for example, 9682 + ... + 15289.

It is an arithmetic number, because the mean of its divisors is an integer number (10226034).

Almost surely, 2^70018684 is an apocalyptic number.

It is an amenable number.

70018684 is a deficient number, since it is larger than the sum of its proper divisors (52693724).

70018684 is a wasteful number, since it uses less digits than its factorization.

70018684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25676 (or 25674 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 70018684 is about 8367.7167734096. The cubic root of 70018684 is about 412.1651943830.

The spelling of 70018684 in words is "seventy million, eighteen thousand, six hundred eighty-four".