71650863 has 12 divisors (see below), whose sum is σ = 104252928. Its totient is φ = 47417760.

The previous prime is 71650861. The next prime is 71650871. The reversal of 71650863 is 36805617.

It is not a de Polignac number, because 71650863 - 2¹ = 71650861 is a prime.

It is a super-4 number, since 4×71650863⁴ (a number of 33 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71650861) 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 11 ways as a sum of consecutive naturals, for example, 27823 + ... + 30288.

It is an arithmetic number, because the mean of its divisors is an integer number (8687744).

Almost surely, 2^71650863 is an apocalyptic number.

71650863 is a deficient number, since it is larger than the sum of its proper divisors (32602065).

71650863 is a wasteful number, since it uses less digits than its factorization.

71650863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58254 (or 58251 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 71650863 is about 8464.6832781859. The cubic root of 71650863 is about 415.3432356611.

The spelling of 71650863 in words is "seventy-one million, six hundred fifty thousand, eight hundred sixty-three".