207117434 has 4 divisors (see below), whose sum is σ = 310676154. Its totient is φ = 103558716.

The previous prime is 207117431. The next prime is 207117451. The reversal of 207117434 is 434711702.

207117434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 434711702 = 2 ⋅217355851.

It can be written as a sum of positive squares in only one way, i.e., 118701025 + 88416409 = 10895^2 + 9403^2 .

It is a junction number, because it is equal to n+sod(n) for n = 207117397 and 207117406.

It is not an unprimeable number, because it can be changed into a prime (207117431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51779357 + ... + 51779360.

Almost surely, 2^207117434 is an apocalyptic number.

207117434 is a deficient number, since it is larger than the sum of its proper divisors (103558720).

207117434 is a wasteful number, since it uses less digits than its factorization.

207117434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103558719.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 207117434 is about 14391.5751049008. The cubic root of 207117434 is about 591.6600133440.

The spelling of 207117434 in words is "two hundred seven million, one hundred seventeen thousand, four hundred thirty-four".