71230489 has 16 divisors (see below), whose sum is σ = 81474624. Its totient is φ = 61689600.

The previous prime is 71230483. The next prime is 71230531. The reversal of 71230489 is 98403217.

71230489 = 1266² + 1267² + ... + 1308².

It is a cyclic number.

It is not a de Polignac number, because 71230489 - 2⁵ = 71230457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71230483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17557 + ... + 21229.

It is an arithmetic number, because the mean of its divisors is an integer number (5092164).

Almost surely, 2^71230489 is an apocalyptic number.

It is an amenable number.

71230489 is a deficient number, since it is larger than the sum of its proper divisors (10244135).

71230489 is a wasteful number, since it uses less digits than its factorization.

71230489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3768.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 71230489 is about 8439.8156970398. The cubic root of 71230489 is about 414.5293721362.

The spelling of 71230489 in words is "seventy-one million, two hundred thirty thousand, four hundred eighty-nine".