70643707 has 8 divisors (see below), whose sum is σ = 71704080. Its totient is φ = 69588480.

The previous prime is 70643669. The next prime is 70643717. The reversal of 70643707 is 70734607.

It is a happy number.

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 70643707 - 2⁷ = 70643579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70643717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32907 + ... + 34987.

It is an arithmetic number, because the mean of its divisors is an integer number (8963010).

Almost surely, 2^70643707 is an apocalyptic number.

70643707 is a deficient number, since it is larger than the sum of its proper divisors (1060373).

70643707 is a wasteful number, since it uses less digits than its factorization.

70643707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2573.

The product of its (nonzero) digits is 24696, while the sum is 34.

The square root of 70643707 is about 8404.9810826676. The cubic root of 70643707 is about 413.3879631372.

The spelling of 70643707 in words is "seventy million, six hundred forty-three thousand, seven hundred seven".