71270739 has 16 divisors (see below), whose sum is σ = 106048800. Its totient is φ = 47305728.

The previous prime is 71270707. The next prime is 71270803. The reversal of 71270739 is 93707217.

It is not a de Polignac number, because 71270739 - 2⁵ = 71270707 is a prime.

It is a super-2 number, since 2×71270739² = 10159036475212242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (71270839) 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, 627 + ... + 11955.

It is an arithmetic number, because the mean of its divisors is an integer number (6628050).

Almost surely, 2^71270739 is an apocalyptic number.

71270739 is a deficient number, since it is larger than the sum of its proper divisors (34778061).

71270739 is a wasteful number, since it uses less digits than its factorization.

71270739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11571 (or 11565 counting only the distinct ones).

The product of its (nonzero) digits is 18522, while the sum is 36.

The square root of 71270739 is about 8442.1998910237. The cubic root of 71270739 is about 414.6074363929.

The spelling of 71270739 in words is "seventy-one million, two hundred seventy thousand, seven hundred thirty-nine".