71400589 has 8 divisors (see below), whose sum is σ = 77016632. Its totient is φ = 65802240.

The previous prime is 71400577. The next prime is 71400599. The reversal of 71400589 is 98500417.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 133225 + 71267364 = 365^2 + 8442^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71400589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71400509) 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, 4669 + ... + 12829.

It is an arithmetic number, because the mean of its divisors is an integer number (9627079).

Almost surely, 2^71400589 is an apocalyptic number.

It is an amenable number.

71400589 is a deficient number, since it is larger than the sum of its proper divisors (5616043).

71400589 is a wasteful number, since it uses less digits than its factorization.

71400589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8847.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 71400589 is about 8449.8869223203. The cubic root of 71400589 is about 414.8590782957.

The spelling of 71400589 in words is "seventy-one million, four hundred thousand, five hundred eighty-nine".