391060164 has 96 divisors (see below), whose sum is σ = 1034514432. Its totient is φ = 113904000.

The previous prime is 391060123. The next prime is 391060177. The reversal of 391060164 is 461060193.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 928674 + ... + 929094.

It is an arithmetic number, because the mean of its divisors is an integer number (10776192).

Almost surely, 2^391060164 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 391060164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (517257216).

391060164 is an abundant number, since it is smaller than the sum of its proper divisors (643454268).

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

391060164 is a wasteful number, since it uses less digits than its factorization.

391060164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697 (or 695 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 391060164 is about 19775.2411868983. The cubic root of 391060164 is about 731.2757849626.

The spelling of 391060164 in words is "three hundred ninety-one million, sixty thousand, one hundred sixty-four".