70052237 has 4 divisors (see below), whose sum is σ = 70072860. Its totient is φ = 70031616.

The previous prime is 70052233. The next prime is 70052239. The reversal of 70052237 is 73225007.

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

It can be written as a sum of positive squares in 2 ways, for example, as 36168196 + 33884041 = 6014^2 + 5821^2 .

It is a cyclic number.

It is not a de Polignac number, because 70052237 - 2² = 70052233 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 (70052233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3878 + ... + 12455.

It is an arithmetic number, because the mean of its divisors is an integer number (17518215).

Almost surely, 2^70052237 is an apocalyptic number.

It is an amenable number.

70052237 is a deficient number, since it is larger than the sum of its proper divisors (20623).

70052237 is a wasteful number, since it uses less digits than its factorization.

70052237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20622.

The product of its (nonzero) digits is 2940, while the sum is 26.

The square root of 70052237 is about 8369.7214410039. The cubic root of 70052237 is about 412.2310204814.

The spelling of 70052237 in words is "seventy million, fifty-two thousand, two hundred thirty-seven".