71440083 has 32 divisors (see below), whose sum is σ = 124346880. Its totient is φ = 39964320.

The previous prime is 71440073. The next prime is 71440087. The reversal of 71440083 is 38004417.

It is not a de Polignac number, because 71440083 - 2⁵ = 71440051 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (71440087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5391 + ... + 13112.

It is an arithmetic number, because the mean of its divisors is an integer number (3885840).

Almost surely, 2^71440083 is an apocalyptic number.

71440083 is a deficient number, since it is larger than the sum of its proper divisors (52906797).

71440083 is a wasteful number, since it uses less digits than its factorization.

71440083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18536 (or 18530 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 71440083 is about 8452.2235535982. The cubic root of 71440083 is about 414.9355549031.

The spelling of 71440083 in words is "seventy-one million, four hundred forty thousand, eighty-three".