71093631 has 16 divisors (see below), whose sum is σ = 110976768. Its totient is φ = 39633600.

The previous prime is 71093629. The next prime is 71093639. The reversal of 71093631 is 13639017.

It is not a de Polignac number, because 71093631 - 2¹ = 71093629 is a prime.

It is a super-2 number, since 2×71093631² = 10108608737528322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71093639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40425 + ... + 42146.

It is an arithmetic number, because the mean of its divisors is an integer number (6936048).

Almost surely, 2^71093631 is an apocalyptic number.

71093631 is a deficient number, since it is larger than the sum of its proper divisors (39883137).

71093631 is a wasteful number, since it uses less digits than its factorization.

71093631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82622.

The product of its (nonzero) digits is 3402, while the sum is 30.

The square root of 71093631 is about 8431.7039203236. The cubic root of 71093631 is about 414.2637179477.

The spelling of 71093631 in words is "seventy-one million, ninety-three thousand, six hundred thirty-one".