70106390 has 32 divisors (see below), whose sum is σ = 133578720. Its totient is φ = 26417664.

The previous prime is 70106363. The next prime is 70106401. The reversal of 70106390 is 9360107.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36494 + ... + 38366.

It is an arithmetic number, because the mean of its divisors is an integer number (4174335).

Almost surely, 2^70106390 is an apocalyptic number.

70106390 is a deficient number, since it is larger than the sum of its proper divisors (63472330).

70106390 is a wasteful number, since it uses less digits than its factorization.

70106390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2096.

The product of its (nonzero) digits is 1134, while the sum is 26.

The square root of 70106390 is about 8372.9558699422. The cubic root of 70106390 is about 412.3372164553.

Adding to 70106390 its reverse (9360107), we get a palindrome (79466497).

The spelling of 70106390 in words is "seventy million, one hundred six thousand, three hundred ninety".