120799917 has 48 divisors (see below), whose sum is σ = 211341312. Its totient is φ = 67515120.

The previous prime is 120799907. The next prime is 120799937. The reversal of 120799917 is 719997021.

It is not a de Polignac number, because 120799917 - 2²² = 116605613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120799907) 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, 79192 + ... + 80702.

It is an arithmetic number, because the mean of its divisors is an integer number (4402944).

Almost surely, 2^120799917 is an apocalyptic number.

It is an amenable number.

120799917 is a deficient number, since it is larger than the sum of its proper divisors (90541395).

120799917 is an equidigital number, since it uses as much as digits as its factorization.

120799917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1580 (or 1568 counting only the distinct ones).

The product of its (nonzero) digits is 71442, while the sum is 45.

The square root of 120799917 is about 10990.9015553775. The cubic root of 120799917 is about 494.3359691206.

It can be divided in two parts, 1207 and 99917, that added together give a square (101124 = 318²).

The spelling of 120799917 in words is "one hundred twenty million, seven hundred ninety-nine thousand, nine hundred seventeen".