60391009 has 8 divisors (see below), whose sum is σ = 70320960. Its totient is φ = 50786736.

The previous prime is 60390977. The next prime is 60391027. The reversal of 60391009 is 90019306.

It is a happy number.

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

It is not a de Polignac number, because 60391009 - 2⁵ = 60390977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (60391609) 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, 81019 + ... + 81760.

It is an arithmetic number, because the mean of its divisors is an integer number (8790120).

Almost surely, 2^60391009 is an apocalyptic number.

It is an amenable number.

60391009 is a deficient number, since it is larger than the sum of its proper divisors (9929951).

60391009 is a wasteful number, since it uses less digits than its factorization.

60391009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162839.

The product of its (nonzero) digits is 1458, while the sum is 28.

The square root of 60391009 is about 7771.1652279436. The cubic root of 60391009 is about 392.3353392645.

The spelling of 60391009 in words is "sixty million, three hundred ninety-one thousand, nine".