71457670 has 32 divisors (see below), whose sum is σ = 138710880. Its totient is φ = 26415360.

The previous prime is 71457667. The next prime is 71457677. The reversal of 71457670 is 7675417.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71457677) 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 15 ways as a sum of consecutive naturals, for example, 3204 + ... + 12376.

It is an arithmetic number, because the mean of its divisors is an integer number (4334715).

Almost surely, 2^71457670 is an apocalyptic number.

71457670 is a deficient number, since it is larger than the sum of its proper divisors (67253210).

71457670 is a wasteful number, since it uses less digits than its factorization.

71457670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9240.

The product of its (nonzero) digits is 41160, while the sum is 37.

The square root of 71457670 is about 8453.2638666967. The cubic root of 71457670 is about 414.9696014895.

It can be divided in two parts, 71457 and 670, that added together give a palindrome (72127).

The spelling of 71457670 in words is "seventy-one million, four hundred fifty-seven thousand, six hundred seventy".