70850019 has 4 divisors (see below), whose sum is σ = 94466696. Its totient is φ = 47233344.

The previous prime is 70850011. The next prime is 70850023. The reversal of 70850019 is 91005807.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91005807 = 3 ⋅30335269.

It is not a de Polignac number, because 70850019 - 2³ = 70850011 is a prime.

It is a super-2 number, since 2×70850019² = 10039450384600722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70850011) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 11808334 + ... + 11808339.

It is an arithmetic number, because the mean of its divisors is an integer number (23616674).

Almost surely, 2^70850019 is an apocalyptic number.

70850019 is a deficient number, since it is larger than the sum of its proper divisors (23616677).

70850019 is a wasteful number, since it uses less digits than its factorization.

70850019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23616676.

The product of its (nonzero) digits is 2520, while the sum is 30.

The square root of 70850019 is about 8417.2453332429. The cubic root of 70850019 is about 413.7899994492.

The spelling of 70850019 in words is "seventy million, eight hundred fifty thousand, nineteen".