70220807 has 4 divisors (see below), whose sum is σ = 70255920. Its totient is φ = 70185696.

The previous prime is 70220767. The next prime is 70220819. The reversal of 70220807 is 70802207.

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 70220807 - 2⁸ = 70220551 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 (70220837) 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, 14363 + ... + 18620.

It is an arithmetic number, because the mean of its divisors is an integer number (17563980).

Almost surely, 2^70220807 is an apocalyptic number.

70220807 is a deficient number, since it is larger than the sum of its proper divisors (35113).

70220807 is a wasteful number, since it uses less digits than its factorization.

70220807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35112.

The product of its (nonzero) digits is 1568, while the sum is 26.

The square root of 70220807 is about 8379.7856177828. The cubic root of 70220807 is about 412.5614125890.

The spelling of 70220807 in words is "seventy million, two hundred twenty thousand, eight hundred seven".