71429660 has 24 divisors (see below), whose sum is σ = 153195840. Its totient is φ = 27963584.

The previous prime is 71429653. The next prime is 71429663. The reversal of 71429660 is 6692417.

It is a self number, because there is not a number n which added to its sum of digits gives 71429660.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71429663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37055 + ... + 38934.

It is an arithmetic number, because the mean of its divisors is an integer number (6383160).

Almost surely, 2^71429660 is an apocalyptic number.

It is an amenable number.

71429660 is an abundant number, since it is smaller than the sum of its proper divisors (81766180).

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

71429660 is a wasteful number, since it uses less digits than its factorization.

71429660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76045 (or 76043 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 71429660 is about 8451.6069477940. The cubic root of 71429660 is about 414.9153744318.

The spelling of 71429660 in words is "seventy-one million, four hundred twenty-nine thousand, six hundred sixty".