71642948 has 12 divisors (see below), whose sum is σ = 135019500. Its totient is φ = 33065952.

The previous prime is 71642941. The next prime is 71642959. The reversal of 71642948 is 84924617.

It can be written as a sum of positive squares in 2 ways, for example, as 21827584 + 49815364 = 4672^2 + 7058^2 .

It is not an unprimeable number, because it can be changed into a prime (71642941) 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 3 ways as a sum of consecutive naturals, for example, 688823 + ... + 688926.

It is an arithmetic number, because the mean of its divisors is an integer number (11251625).

Almost surely, 2^71642948 is an apocalyptic number.

It is an amenable number.

71642948 is a deficient number, since it is larger than the sum of its proper divisors (63376552).

71642948 is a wasteful number, since it uses less digits than its factorization.

71642948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1377766 (or 1377764 counting only the distinct ones).

The product of its digits is 96768, while the sum is 41.

The square root of 71642948 is about 8464.2157344907. The cubic root of 71642948 is about 415.3279412989.

The spelling of 71642948 in words is "seventy-one million, six hundred forty-two thousand, nine hundred forty-eight".