70437005 has 8 divisors (see below), whose sum is σ = 85910424. Its totient is φ = 55425600.

The previous prime is 70436987. The next prime is 70437007. The reversal of 70437005 is 50073407.

It can be written as a sum of positive squares in 4 ways, for example, as 7409284 + 63027721 = 2722^2 + 7939^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 70437005 - 2²⁴ = 53659789 is a prime.

It is a super-2 number, since 2×70437005² = 9922743346740050, 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 (70437007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115166 + ... + 115775.

It is an arithmetic number, because the mean of its divisors is an integer number (10738803).

Almost surely, 2^70437005 is an apocalyptic number.

It is an amenable number.

70437005 is a deficient number, since it is larger than the sum of its proper divisors (15473419).

70437005 is a wasteful number, since it uses less digits than its factorization.

70437005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231007.

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

The square root of 70437005 is about 8392.6756758497. The cubic root of 70437005 is about 412.9843810965.

The spelling of 70437005 in words is "seventy million, four hundred thirty-seven thousand, five".