70211863 has 2 divisors, whose sum is σ = 70211864. Its totient is φ = 70211862.

The previous prime is 70211861. The next prime is 70211881. The reversal of 70211863 is 36811207.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70211863 - 2¹ = 70211861 is a prime.

Together with 70211861, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70211861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35105931 + 35105932.

It is an arithmetic number, because the mean of its divisors is an integer number (35105932).

Almost surely, 2^70211863 is an apocalyptic number.

70211863 is a deficient number, since it is larger than the sum of its proper divisors (1).

70211863 is an equidigital number, since it uses as much as digits as its factorization.

70211863 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 70211863 is about 8379.2519355847. The cubic root of 70211863 is about 412.5438959103.

The spelling of 70211863 in words is "seventy million, two hundred eleven thousand, eight hundred sixty-three".