70857028 has 12 divisors (see below), whose sum is σ = 135272592. Its totient is φ = 32207720.

The previous prime is 70857013. The next prime is 70857067. The reversal of 70857028 is 82075807.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 805150 + ... + 805237.

It is an arithmetic number, because the mean of its divisors is an integer number (11272716).

Almost surely, 2^70857028 is an apocalyptic number.

It is an amenable number.

70857028 is a deficient number, since it is larger than the sum of its proper divisors (64415564).

70857028 is a wasteful number, since it uses less digits than its factorization.

70857028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1610402 (or 1610400 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 37.

The square root of 70857028 is about 8417.6616705591. The cubic root of 70857028 is about 413.8036440396.

The spelling of 70857028 in words is "seventy million, eight hundred fifty-seven thousand, twenty-eight".