71406516 has 24 divisors (see below), whose sum is σ = 171990784. Its totient is φ = 23034240.

The previous prime is 71406509. The next prime is 71406521. The reversal of 71406516 is 61560417.

It is a congruent number.

It is an unprimeable number.

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, 95605 + ... + 96348.

Almost surely, 2^71406516 is an apocalyptic number.

It is an amenable number.

71406516 is an abundant number, since it is smaller than the sum of its proper divisors (100584268).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71406516 is a wasteful number, since it uses less digits than its factorization.

71406516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191991 (or 191989 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 71406516 is about 8450.2376297948. The cubic root of 71406516 is about 414.8705572007.

The spelling of 71406516 in words is "seventy-one million, four hundred six thousand, five hundred sixteen".