70097191 has 4 divisors (see below), whose sum is σ = 70464384. Its totient is φ = 69730000.

The previous prime is 70097189. The next prime is 70097197. The reversal of 70097191 is 19179007.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19179007 = 337 ⋅56911.

It is a cyclic number.

It is not a de Polignac number, because 70097191 - 2¹ = 70097189 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 (70097197) 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, 183310 + ... + 183691.

It is an arithmetic number, because the mean of its divisors is an integer number (17616096).

Almost surely, 2^70097191 is an apocalyptic number.

70097191 is a deficient number, since it is larger than the sum of its proper divisors (367193).

70097191 is a wasteful number, since it uses less digits than its factorization.

70097191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367192.

The product of its (nonzero) digits is 3969, while the sum is 34.

The square root of 70097191 is about 8372.4065238138. The cubic root of 70097191 is about 412.3191807434.

The spelling of 70097191 in words is "seventy million, ninety-seven thousand, one hundred ninety-one".