70437271 has 4 divisors (see below), whose sum is σ = 71121232. Its totient is φ = 69753312.

The previous prime is 70437253. The next prime is 70437329. The reversal of 70437271 is 17273407.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70437271 is a prime.

It is a super-2 number, since 2×70437271² = 9922818291854882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70447271) 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, 341826 + ... + 342031.

It is an arithmetic number, because the mean of its divisors is an integer number (17780308).

Almost surely, 2^70437271 is an apocalyptic number.

70437271 is a deficient number, since it is larger than the sum of its proper divisors (683961).

70437271 is a wasteful number, since it uses less digits than its factorization.

70437271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683960.

The product of its (nonzero) digits is 8232, while the sum is 31.

The square root of 70437271 is about 8392.6915229859. The cubic root of 70437271 is about 412.9849009639.

The spelling of 70437271 in words is "seventy million, four hundred thirty-seven thousand, two hundred seventy-one".