70222897 has 4 divisors (see below), whose sum is σ = 71069040. Its totient is φ = 69376756.

The previous prime is 70222877. The next prime is 70222907. The reversal of 70222897 is 79822207.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 79822207 = 941 ⋅84827.

It is a cyclic number.

It is not a de Polignac number, because 70222897 - 2⁷ = 70222769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70222807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 422947 + ... + 423112.

It is an arithmetic number, because the mean of its divisors is an integer number (17767260).

Almost surely, 2^70222897 is an apocalyptic number.

It is an amenable number.

70222897 is a deficient number, since it is larger than the sum of its proper divisors (846143).

70222897 is an equidigital number, since it uses as much as digits as its factorization.

70222897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846142.

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 70222897 is about 8379.9103217159. The cubic root of 70222897 is about 412.5655056056.

The spelling of 70222897 in words is "seventy million, two hundred twenty-two thousand, eight hundred ninety-seven".