207690601 has 4 divisors (see below), whose sum is σ = 208224900. Its totient is φ = 207156304.

The previous prime is 207690589. The next prime is 207690611. The reversal of 207690601 is 106096702.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 106096702 = 2 ⋅53048351.

It can be written as a sum of positive squares in 2 ways, for example, as 15840400 + 191850201 = 3980^2 + 13851^2 .

It is a cyclic number.

It is not a de Polignac number, because 207690601 - 2⁵ = 207690569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (207690611) 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, 266566 + ... + 267343.

It is an arithmetic number, because the mean of its divisors is an integer number (52056225).

Almost surely, 2^207690601 is an apocalyptic number.

It is an amenable number.

207690601 is a deficient number, since it is larger than the sum of its proper divisors (534299).

207690601 is an equidigital number, since it uses as much as digits as its factorization.

207690601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534298.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 207690601 is about 14411.4746296137. The cubic root of 207690601 is about 592.2052879850.

The spelling of 207690601 in words is "two hundred seven million, six hundred ninety thousand, six hundred one".