207997070 has 16 divisors (see below), whose sum is σ = 377831520. Its totient is φ = 82435104.

The previous prime is 207997051. The next prime is 207997079. The reversal of 207997070 is 70799702.

It is a happy number.

It is a super-2 number, since 2×207997070² = 86525562257169800, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (207997079) 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 7 ways as a sum of consecutive naturals, for example, 94322 + ... + 96501.

It is an arithmetic number, because the mean of its divisors is an integer number (23614470).

Almost surely, 2^207997070 is an apocalyptic number.

207997070 is a deficient number, since it is larger than the sum of its proper divisors (169834450).

207997070 is a wasteful number, since it uses less digits than its factorization.

207997070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190939.

The product of its (nonzero) digits is 55566, while the sum is 41.

The square root of 207997070 is about 14422.1035220248. The cubic root of 207997070 is about 592.4964315808.

The spelling of 207997070 in words is "two hundred seven million, nine hundred ninety-seven thousand, seventy".