70856894 has 4 divisors (see below), whose sum is σ = 106285344. Its totient is φ = 35428446.

The previous prime is 70856881. The next prime is 70856921. The reversal of 70856894 is 49865807.

It is a semiprime because it is the product of two primes.

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, 17714222 + ... + 17714225.

It is an arithmetic number, because the mean of its divisors is an integer number (26571336).

Almost surely, 2^70856894 is an apocalyptic number.

70856894 is a deficient number, since it is larger than the sum of its proper divisors (35428450).

70856894 is a wasteful number, since it uses less digits than its factorization.

70856894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35428449.

The product of its (nonzero) digits is 483840, while the sum is 47.

The square root of 70856894 is about 8417.6537111003. The cubic root of 70856894 is about 413.8033831870.

The spelling of 70856894 in words is "seventy million, eight hundred fifty-six thousand, eight hundred ninety-four".