70817996 has 12 divisors (see below), whose sum is σ = 123990552. Its totient is φ = 35392128.

The previous prime is 70817993. The next prime is 70818001. The reversal of 70817996 is 69971807.

It is a self number, because there is not a number n which added to its sum of digits gives 70817996.

It is not an unprimeable number, because it can be changed into a prime (70817993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13436 + ... + 17948.

It is an arithmetic number, because the mean of its divisors is an integer number (10332546).

Almost surely, 2^70817996 is an apocalyptic number.

It is an amenable number.

70817996 is a deficient number, since it is larger than the sum of its proper divisors (53172556).

70817996 is a wasteful number, since it uses less digits than its factorization.

70817996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8440 (or 8438 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 47.

The square root of 70817996 is about 8415.3428925980. The cubic root of 70817996 is about 413.7276480473.

The spelling of 70817996 in words is "seventy million, eight hundred seventeen thousand, nine hundred ninety-six".