70817379 has 8 divisors (see below), whose sum is σ = 94470912. Its totient is φ = 47187720.

The previous prime is 70817353. The next prime is 70817387. The reversal of 70817379 is 97371807.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 70817379 - 2¹¹ = 70815331 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 70817379.

It is not an unprimeable number, because it can be changed into a prime (70817399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2794 + ... + 12224.

It is an arithmetic number, because the mean of its divisors is an integer number (11808864).

Almost surely, 2^70817379 is an apocalyptic number.

70817379 is a deficient number, since it is larger than the sum of its proper divisors (23653533).

70817379 is a wasteful number, since it uses less digits than its factorization.

70817379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11937.

The product of its (nonzero) digits is 74088, while the sum is 42.

The square root of 70817379 is about 8415.3062332871. The cubic root of 70817379 is about 413.7264465132.

The spelling of 70817379 in words is "seventy million, eight hundred seventeen thousand, three hundred seventy-nine".