71693460 has 72 divisors (see below), whose sum is σ = 228926880. Its totient is φ = 18111168.

The previous prime is 71693411. The next prime is 71693473. The reversal of 71693460 is 6439617.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7062 + ... + 13901.

It is an arithmetic number, because the mean of its divisors is an integer number (3179540).

Almost surely, 2^71693460 is an apocalyptic number.

It is an amenable number.

71693460 is an abundant number, since it is smaller than the sum of its proper divisors (157233420).

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

71693460 is a wasteful number, since it uses less digits than its factorization.

71693460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20997 (or 20992 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 71693460 is about 8467.1990646258. The cubic root of 71693460 is about 415.4255276259.

The spelling of 71693460 in words is "seventy-one million, six hundred ninety-three thousand, four hundred sixty".