71361672 has 16 divisors (see below), whose sum is σ = 178404240. Its totient is φ = 23787216.

The previous prime is 71361649. The next prime is 71361673. The reversal of 71361672 is 27616317.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (71361673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1486678 + ... + 1486725.

It is an arithmetic number, because the mean of its divisors is an integer number (11150265).

Almost surely, 2^71361672 is an apocalyptic number.

It is an amenable number.

71361672 is an abundant number, since it is smaller than the sum of its proper divisors (107042568).

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

71361672 is a wasteful number, since it uses less digits than its factorization.

71361672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2973412 (or 2973408 counting only the distinct ones).

The product of its digits is 10584, while the sum is 33.

The square root of 71361672 is about 8447.5837965657. The cubic root of 71361672 is about 414.7836914062.

Adding to 71361672 its reverse (27616317), we get a palindrome (98977989).

The spelling of 71361672 in words is "seventy-one million, three hundred sixty-one thousand, six hundred seventy-two".