70845197 has 4 divisors (see below), whose sum is σ = 71902656. Its totient is φ = 69787740.

The previous prime is 70845191. The next prime is 70845233. The reversal of 70845197 is 79154807.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 79154807 = 1013 ⋅78139.

It is a cyclic number.

It is not a de Polignac number, because 70845197 - 2⁶ = 70845133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70845191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 528629 + ... + 528762.

It is an arithmetic number, because the mean of its divisors is an integer number (17975664).

Almost surely, 2^70845197 is an apocalyptic number.

It is an amenable number.

70845197 is a deficient number, since it is larger than the sum of its proper divisors (1057459).

70845197 is a wasteful number, since it uses less digits than its factorization.

70845197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1057458.

The product of its (nonzero) digits is 70560, while the sum is 41.

The square root of 70845197 is about 8416.9588926167. The cubic root of 70845197 is about 413.7806118222.

The spelling of 70845197 in words is "seventy million, eight hundred forty-five thousand, one hundred ninety-seven".