70898863 has 4 divisors (see below), whose sum is σ = 81027280. Its totient is φ = 60770448.

The previous prime is 70898851. The next prime is 70898909. The reversal of 70898863 is 36889807.

It is a happy number.

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 70898863 - 2⁵ = 70898831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70898803) 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, 5064198 + ... + 5064211.

It is an arithmetic number, because the mean of its divisors is an integer number (20256820).

Almost surely, 2^70898863 is an apocalyptic number.

70898863 is a deficient number, since it is larger than the sum of its proper divisors (10128417).

70898863 is a wasteful number, since it uses less digits than its factorization.

70898863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10128416.

The product of its (nonzero) digits is 580608, while the sum is 49.

The square root of 70898863 is about 8420.1462576371. The cubic root of 70898863 is about 413.8850665419.

The spelling of 70898863 in words is "seventy million, eight hundred ninety-eight thousand, eight hundred sixty-three".