70986197 has 4 divisors (see below), whose sum is σ = 71043840. Its totient is φ = 70928556.

The previous prime is 70986079. The next prime is 70986199. The reversal of 70986197 is 79168907.

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.

It is a cyclic number.

It is not a de Polignac number, because 70986197 - 2¹⁴ = 70969813 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 (70986199) 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, 26933 + ... + 29450.

It is an arithmetic number, because the mean of its divisors is an integer number (17760960).

Almost surely, 2^70986197 is an apocalyptic number.

It is an amenable number.

70986197 is a deficient number, since it is larger than the sum of its proper divisors (57643).

70986197 is a wasteful number, since it uses less digits than its factorization.

70986197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57642.

The product of its (nonzero) digits is 190512, while the sum is 47.

The square root of 70986197 is about 8425.3306760032. The cubic root of 70986197 is about 414.0549395378.

The spelling of 70986197 in words is "seventy million, nine hundred eighty-six thousand, one hundred ninety-seven".