70856523 has 6 divisors (see below), whose sum is σ = 102348324. Its totient is φ = 47237676.

The previous prime is 70856507. The next prime is 70856531. The reversal of 70856523 is 32565807.

70856523 is a `hidden beast` number, since 70 + 8 + 565 + 23 = 666.

It is not a de Polignac number, because 70856523 - 2⁴ = 70856507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70856593) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3936465 + ... + 3936482.

It is an arithmetic number, because the mean of its divisors is an integer number (17058054).

Almost surely, 2^70856523 is an apocalyptic number.

70856523 is a deficient number, since it is larger than the sum of its proper divisors (31491801).

70856523 is a wasteful number, since it uses less digits than its factorization.

70856523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7872953 (or 7872950 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 70856523 is about 8417.6316740518. The cubic root of 70856523 is about 413.8026609739.

The spelling of 70856523 in words is "seventy million, eight hundred fifty-six thousand, five hundred twenty-three".