70896823 has 4 divisors (see below), whose sum is σ = 72059128. Its totient is φ = 69734520.

The previous prime is 70896803. The next prime is 70896827. The reversal of 70896823 is 32869807.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70896823 is a prime.

It is a super-2 number, since 2×70896823² = 10052719022986658, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70896823.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70896827) 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, 581061 + ... + 581182.

It is an arithmetic number, because the mean of its divisors is an integer number (18014782).

Almost surely, 2^70896823 is an apocalyptic number.

70896823 is a deficient number, since it is larger than the sum of its proper divisors (1162305).

70896823 is a wasteful number, since it uses less digits than its factorization.

70896823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1162304.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 70896823 is about 8420.0251187274. The cubic root of 70896823 is about 413.8810968796.

The spelling of 70896823 in words is "seventy million, eight hundred ninety-six thousand, eight hundred twenty-three".