71443604 has 12 divisors (see below), whose sum is σ = 126315924. Its totient is φ = 35353344.

The previous prime is 71443583. The next prime is 71443609. The reversal of 71443604 is 40634417.

It can be written as a sum of positive squares in 2 ways, for example, as 45535504 + 25908100 = 6748^2 + 5090^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71443609) 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, 91679 + ... + 92454.

It is an arithmetic number, because the mean of its divisors is an integer number (10526327).

Almost surely, 2^71443604 is an apocalyptic number.

It is an amenable number.

71443604 is a deficient number, since it is larger than the sum of its proper divisors (54872320).

71443604 is a wasteful number, since it uses less digits than its factorization.

71443604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184234 (or 184232 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 71443604 is about 8452.4318394176. The cubic root of 71443604 is about 414.9423716369.

The spelling of 71443604 in words is "seventy-one million, four hundred forty-three thousand, six hundred four".