70197997 has 8 divisors (see below), whose sum is σ = 71509536. Its totient is φ = 68897712.

The previous prime is 70197983. The next prime is 70198019. The reversal of 70197997 is 79979107.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 70197997 - 2¹¹ = 70195949 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70197997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70197797) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10338 + ... + 15724.

It is an arithmetic number, because the mean of its divisors is an integer number (8938692).

Almost surely, 2^70197997 is an apocalyptic number.

It is an amenable number.

70197997 is a deficient number, since it is larger than the sum of its proper divisors (1311539).

70197997 is a wasteful number, since it uses less digits than its factorization.

70197997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5627.

The product of its (nonzero) digits is 250047, while the sum is 49.

The square root of 70197997 is about 8378.4244939010. The cubic root of 70197997 is about 412.5167366334.

The spelling of 70197997 in words is "seventy million, one hundred ninety-seven thousand, nine hundred ninety-seven".