70210247 has 4 divisors (see below), whose sum is σ = 72631320. Its totient is φ = 67789176.

The previous prime is 70210241. The next prime is 70210253. The reversal of 70210247 is 74201207.

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

It is an interprime number because it is at equal distance from previous prime (70210241) and next prime (70210253).

It is a cyclic number.

It is not a de Polignac number, because 70210247 - 2⁸ = 70209991 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 (70210241) 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, 1210493 + ... + 1210550.

It is an arithmetic number, because the mean of its divisors is an integer number (18157830).

Almost surely, 2^70210247 is an apocalyptic number.

70210247 is a deficient number, since it is larger than the sum of its proper divisors (2421073).

70210247 is a wasteful number, since it uses less digits than its factorization.

70210247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2421072.

The product of its (nonzero) digits is 784, while the sum is 23.

The square root of 70210247 is about 8379.1555063741. The cubic root of 70210247 is about 412.5407308418.

The spelling of 70210247 in words is "seventy million, two hundred ten thousand, two hundred forty-seven".