207115947 has 48 divisors (see below), whose sum is σ = 331504992. Its totient is φ = 128770560.

The previous prime is 207115939. The next prime is 207115963. The reversal of 207115947 is 749511702.

It is a happy number.

207115947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 207115947 - 2³ = 207115939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (207116947) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 747573 + ... + 747849.

It is an arithmetic number, because the mean of its divisors is an integer number (6906354).

Almost surely, 2^207115947 is an apocalyptic number.

207115947 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

207115947 is a deficient number, since it is larger than the sum of its proper divisors (124389045).

207115947 is a wasteful number, since it uses less digits than its factorization.

207115947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490 (or 478 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 36.

The square root of 207115947 is about 14391.5234426380. The cubic root of 207115947 is about 591.6585973993.

It can be divided in two parts, 20711594 and 7, that added together give a square (20711601 = 4551²).

The spelling of 207115947 in words is "two hundred seven million, one hundred fifteen thousand, nine hundred forty-seven".