71498853 has 6 divisors (see below), whose sum is σ = 103276134. Its totient is φ = 47665896.

The previous prime is 71498839. The next prime is 71498863. The reversal of 71498853 is 35889417.

It can be written as a sum of positive squares in only one way, i.e., 63393444 + 8105409 = 7962^2 + 2847^2 .

It is not a de Polignac number, because 71498853 - 2⁸ = 71498597 is a prime.

It is a super-2 number, since 2×71498853² = 10224171960631218, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 71498799 and 71498808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71498813) 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 5 ways as a sum of consecutive naturals, for example, 3972150 + ... + 3972167.

It is an arithmetic number, because the mean of its divisors is an integer number (17212689).

Almost surely, 2^71498853 is an apocalyptic number.

It is an amenable number.

71498853 is a deficient number, since it is larger than the sum of its proper divisors (31777281).

71498853 is a wasteful number, since it uses less digits than its factorization.

71498853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7944323 (or 7944320 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 71498853 is about 8455.6994388401. The cubic root of 71498853 is about 415.0493056046.

The spelling of 71498853 in words is "seventy-one million, four hundred ninety-eight thousand, eight hundred fifty-three".