70688684 has 18 divisors (see below), whose sum is σ = 135974412. Its totient is φ = 32131000.

The previous prime is 70688677. The next prime is 70688701. The reversal of 70688684 is 48688607.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 72542 + ... + 73509.

It is an arithmetic number, because the mean of its divisors is an integer number (7554134).

Almost surely, 2^70688684 is an apocalyptic number.

It is an amenable number.

70688684 is a deficient number, since it is larger than the sum of its proper divisors (65285728).

70688684 is a wasteful number, since it uses less digits than its factorization.

70688684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146077 (or 146064 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 47.

The square root of 70688684 is about 8407.6562727076. The cubic root of 70688684 is about 413.4756756253.

The spelling of 70688684 in words is "seventy million, six hundred eighty-eight thousand, six hundred eighty-four".