70231856 has 10 divisors (see below), whose sum is σ = 136074252. Its totient is φ = 35115920.

The previous prime is 70231849. The next prime is 70231867. The reversal of 70231856 is 65813207.

It is a happy 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, 2194730 + ... + 2194761.

Almost surely, 2^70231856 is an apocalyptic number.

It is an amenable number.

70231856 is a deficient number, since it is larger than the sum of its proper divisors (65842396).

70231856 is a wasteful number, since it uses less digits than its factorization.

70231856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4389499 (or 4389493 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 70231856 is about 8380.4448569273. Note that the first 3 decimals coincide. The cubic root of 70231856 is about 412.5830498224.

The spelling of 70231856 in words is "seventy million, two hundred thirty-one thousand, eight hundred fifty-six".