207117492 has 12 divisors (see below), whose sum is σ = 483274176. Its totient is φ = 69039160.

The previous prime is 207117473. The next prime is 207117517. The reversal of 207117492 is 294711702.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

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, 8629884 + ... + 8629907.

It is an arithmetic number, because the mean of its divisors is an integer number (40272848).

Almost surely, 2^207117492 is an apocalyptic number.

It is an amenable number.

207117492 is an abundant number, since it is smaller than the sum of its proper divisors (276156684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

207117492 is a wasteful number, since it uses less digits than its factorization.

207117492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17259798 (or 17259796 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 33.

The square root of 207117492 is about 14391.5771199685. The cubic root of 207117492 is about 591.6600685724.

It can be divided in two parts, 20711 and 7492, that added together give a triangular number (28203 = T₂₃₇).

The spelling of 207117492 in words is "two hundred seven million, one hundred seventeen thousand, four hundred ninety-two".