123790017 has 8 divisors (see below), whose sum is σ = 177749824. Its totient is φ = 76178448.

The previous prime is 123790001. The next prime is 123790019. The reversal of 123790017 is 710097321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 123790017 - 2⁴ = 123790001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123790019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1587013 + ... + 1587090.

It is an arithmetic number, because the mean of its divisors is an integer number (22218728).

Almost surely, 2^123790017 is an apocalyptic number.

It is an amenable number.

123790017 is a deficient number, since it is larger than the sum of its proper divisors (53959807).

123790017 is a wasteful number, since it uses less digits than its factorization.

123790017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3174119.

The product of its (nonzero) digits is 2646, while the sum is 30.

The square root of 123790017 is about 11126.0962156544. The cubic root of 123790017 is about 498.3814556149.

The spelling of 123790017 in words is "one hundred twenty-three million, seven hundred ninety thousand, seventeen".