70171228 has 24 divisors (see below), whose sum is σ = 128852864. Its totient is φ = 33393600.

The previous prime is 70171207. The next prime is 70171243. The reversal of 70171228 is 82217107.

It is a junction number, because it is equal to n+sod(n) for n = 70171196 and 70171205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2926 + ... + 12202.

Almost surely, 2^70171228 is an apocalyptic number.

It is an amenable number.

70171228 is a deficient number, since it is larger than the sum of its proper divisors (58681636).

70171228 is a wasteful number, since it uses less digits than its factorization.

70171228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9373 (or 9371 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 28.

The square root of 70171228 is about 8376.8268455305. The cubic root of 70171228 is about 412.4642941852.

The spelling of 70171228 in words is "seventy million, one hundred seventy-one thousand, two hundred twenty-eight".