71421600 has 72 divisors (see below), whose sum is σ = 232485120. Its totient is φ = 19045120.

The previous prime is 71421599. The next prime is 71421611. The reversal of 71421600 is 612417.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12480 + ... + 17279.

It is an arithmetic number, because the mean of its divisors is an integer number (3228960).

Almost surely, 2^71421600 is an apocalyptic number.

It is an amenable number.

71421600 is an abundant number, since it is smaller than the sum of its proper divisors (161063520).

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

71421600 is a wasteful number, since it uses less digits than its factorization.

71421600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29782 (or 29769 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 71421600 is about 8451.1301019449. The cubic root of 71421600 is about 414.8997677323.

The spelling of 71421600 in words is "seventy-one million, four hundred twenty-one thousand, six hundred".