107890509 has 12 divisors (see below), whose sum is σ = 148648128. Its totient is φ = 69604920.

The previous prime is 107890501. The next prime is 107890513. The reversal of 107890509 is 905098701.

It is a happy number.

It is not a de Polignac number, because 107890509 - 2³ = 107890501 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (107890501) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15829 + ... + 21594.

It is an arithmetic number, because the mean of its divisors is an integer number (12387344).

Almost surely, 2^107890509 is an apocalyptic number.

It is an amenable number.

107890509 is a deficient number, since it is larger than the sum of its proper divisors (40757619).

107890509 is an equidigital number, since it uses as much as digits as its factorization.

107890509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37488 (or 37457 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 39.

The square root of 107890509 is about 10387.0356213888. The cubic root of 107890509 is about 476.0593295748.

The spelling of 107890509 in words is "one hundred seven million, eight hundred ninety thousand, five hundred nine".