70857423 has 40 divisors (see below), whose sum is σ = 130288928. Its totient is φ = 37371456.

The previous prime is 70857401. The next prime is 70857473. The reversal of 70857423 is 32475807.

It is not a de Polignac number, because 70857423 - 2¹² = 70853327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70857473) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2565 + ... + 12177.

Almost surely, 2^70857423 is an apocalyptic number.

70857423 is a deficient number, since it is larger than the sum of its proper divisors (59431505).

70857423 is a wasteful number, since it uses less digits than its factorization.

70857423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9645 (or 9636 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 70857423 is about 8417.6851330992. The cubic root of 70857423 is about 413.8044129689.

The spelling of 70857423 in words is "seventy million, eight hundred fifty-seven thousand, four hundred twenty-three".