392989105 has 8 divisors (see below), whose sum is σ = 472874112. Its totient is φ = 313533168.

The previous prime is 392989097. The next prime is 392989111. The reversal of 392989105 is 501989293.

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

It is a cyclic number.

It is not a de Polignac number, because 392989105 - 2³ = 392989097 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105247 + ... + 108916.

It is an arithmetic number, because the mean of its divisors is an integer number (59109264).

Almost surely, 2^392989105 is an apocalyptic number.

It is an amenable number.

392989105 is a deficient number, since it is larger than the sum of its proper divisors (79885007).

392989105 is a wasteful number, since it uses less digits than its factorization.

392989105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214535.

The product of its (nonzero) digits is 174960, while the sum is 46.

The square root of 392989105 is about 19823.9528096694. The cubic root of 392989105 is about 732.4761756123.

The spelling of 392989105 in words is "three hundred ninety-two million, nine hundred eighty-nine thousand, one hundred five".