70871228 has 6 divisors (see below), whose sum is σ = 124024656. Its totient is φ = 35435612.

The previous prime is 70871219. The next prime is 70871261. The reversal of 70871228 is 82217807.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 8858900 + ... + 8858907.

It is an arithmetic number, because the mean of its divisors is an integer number (20670776).

Almost surely, 2^70871228 is an apocalyptic number.

It is an amenable number.

70871228 is a deficient number, since it is larger than the sum of its proper divisors (53153428).

70871228 is a wasteful number, since it uses less digits than its factorization.

70871228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17717811 (or 17717809 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 35.

The square root of 70871228 is about 8418.5050929485. The cubic root of 70871228 is about 413.8312847664.

The spelling of 70871228 in words is "seventy million, eight hundred seventy-one thousand, two hundred twenty-eight".