70993859 has 4 divisors (see below), whose sum is σ = 71026104. Its totient is φ = 70961616.

The previous prime is 70993849. The next prime is 70993877. The reversal of 70993859 is 95839907.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 70993859 - 2¹⁶ = 70928323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70993849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12557 + ... + 17310.

It is an arithmetic number, because the mean of its divisors is an integer number (17756526).

Almost surely, 2^70993859 is an apocalyptic number.

70993859 is a deficient number, since it is larger than the sum of its proper divisors (32245).

70993859 is a wasteful number, since it uses less digits than its factorization.

70993859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32244.

The product of its (nonzero) digits is 612360, while the sum is 50.

The square root of 70993859 is about 8425.7853639883. The cubic root of 70993859 is about 414.0698362123.

The spelling of 70993859 in words is "seventy million, nine hundred ninety-three thousand, eight hundred fifty-nine".