70036739 has 4 divisors (see below), whose sum is σ = 70923360. Its totient is φ = 69150120.

The previous prime is 70036697. The next prime is 70036783. The reversal of 70036739 is 93763007.

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-70036739 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70036699 and 70036708.

It is not an unprimeable number, because it can be changed into a prime (70036789) 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 3 ways as a sum of consecutive naturals, for example, 443192 + ... + 443349.

It is an arithmetic number, because the mean of its divisors is an integer number (17730840).

Almost surely, 2^70036739 is an apocalyptic number.

70036739 is a gapful number since it is divisible by the number (79) formed by its first and last digit.

70036739 is a deficient number, since it is larger than the sum of its proper divisors (886621).

70036739 is an equidigital number, since it uses as much as digits as its factorization.

70036739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 886620.

The product of its (nonzero) digits is 23814, while the sum is 35.

The square root of 70036739 is about 8368.7955525273. The cubic root of 70036739 is about 412.2006182757.

The spelling of 70036739 in words is "seventy million, thirty-six thousand, seven hundred thirty-nine".