71190739 has 16 divisors (see below), whose sum is σ = 76410880. Its totient is φ = 66134880.

The previous prime is 71190709. The next prime is 71190761. The reversal of 71190739 is 93709117.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71190739 is a prime.

It is a super-2 number, since 2×71190739² = 10136242638732242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71190698 and 71190707.

It is not an unprimeable number, because it can be changed into a prime (71190709) 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 15 ways as a sum of consecutive naturals, for example, 393229 + ... + 393409.

It is an arithmetic number, because the mean of its divisors is an integer number (4775680).

Almost surely, 2^71190739 is an apocalyptic number.

71190739 is a deficient number, since it is larger than the sum of its proper divisors (5220141).

71190739 is a wasteful number, since it uses less digits than its factorization.

71190739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490.

The product of its (nonzero) digits is 11907, while the sum is 37.

The square root of 71190739 is about 8437.4604591666. The cubic root of 71190739 is about 414.4522487545.

The spelling of 71190739 in words is "seventy-one million, one hundred ninety thousand, seven hundred thirty-nine".