207117379 has 12 divisors (see below), whose sum is σ = 243287184. Its totient is φ = 172723104.

The previous prime is 207117359. The next prime is 207117397. The reversal of 207117379 is 973711702.

It is not a de Polignac number, because 207117379 - 2¹⁵ = 207084611 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (207117349) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1224 + ... + 20389.

It is an arithmetic number, because the mean of its divisors is an integer number (20273932).

Almost surely, 2^207117379 is an apocalyptic number.

207117379 is a deficient number, since it is larger than the sum of its proper divisors (36169805).

207117379 is an equidigital number, since it uses as much as digits as its factorization.

207117379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21694 (or 21657 counting only the distinct ones).

The product of its (nonzero) digits is 18522, while the sum is 37.

The square root of 207117379 is about 14391.5731940605. The cubic root of 207117379 is about 591.6599609723.

The spelling of 207117379 in words is "two hundred seven million, one hundred seventeen thousand, three hundred seventy-nine".