207411997 has 8 divisors (see below), whose sum is σ = 223639416. Its totient is φ = 191223552.

The previous prime is 207411991. The next prime is 207412003. The reversal of 207411997 is 799114702.

It is an interprime number because it is at equal distance from previous prime (207411991) and next prime (207412003).

It can be written as a sum of positive squares in 4 ways, for example, as 99480676 + 107931321 = 9974^2 + 10389^2 .

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

It is not a de Polignac number, because 207411997 - 2¹¹ = 207409949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (207411991) 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, 1833 + ... + 20449.

It is an arithmetic number, because the mean of its divisors is an integer number (27954927).

Almost surely, 2^207411997 is an apocalyptic number.

It is an amenable number.

207411997 is a deficient number, since it is larger than the sum of its proper divisors (16227419).

207411997 is a wasteful number, since it uses less digits than its factorization.

207411997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19487.

The product of its (nonzero) digits is 31752, while the sum is 40.

The square root of 207411997 is about 14401.8053382206. The cubic root of 207411997 is about 591.9403673270.

The spelling of 207411997 in words is "two hundred seven million, four hundred eleven thousand, nine hundred ninety-seven".