70457823 has 16 divisors (see below), whose sum is σ = 107750400. Its totient is φ = 45456120.

The previous prime is 70457819. The next prime is 70457839. The reversal of 70457823 is 32875407.

It is not a de Polignac number, because 70457823 - 2² = 70457819 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70457323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41253 + ... + 42926.

It is an arithmetic number, because the mean of its divisors is an integer number (6734400).

Almost surely, 2^70457823 is an apocalyptic number.

70457823 is a deficient number, since it is larger than the sum of its proper divisors (37292577).

70457823 is a wasteful number, since it uses less digits than its factorization.

70457823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84219 (or 84213 counting only the distinct ones).

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

The square root of 70457823 is about 8393.9158323157. The cubic root of 70457823 is about 413.0250636041.

The spelling of 70457823 in words is "seventy million, four hundred fifty-seven thousand, eight hundred twenty-three".