136889398 has 8 divisors (see below), whose sum is σ = 205384608. Its totient is φ = 68427864.

The previous prime is 136889351. The next prime is 136889461. The reversal of 136889398 is 893988631.

It is a happy number.

136889398 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8740 + ... + 18712.

It is an arithmetic number, because the mean of its divisors is an integer number (25673076).

Almost surely, 2^136889398 is an apocalyptic number.

136889398 is a deficient number, since it is larger than the sum of its proper divisors (68495210).

136889398 is an equidigital number, since it uses as much as digits as its factorization.

136889398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16838.

The product of its digits is 2239488, while the sum is 55.

The square root of 136889398 is about 11699.9742734760. The cubic root of 136889398 is about 515.3749090860.

The spelling of 136889398 in words is "one hundred thirty-six million, eight hundred eighty-nine thousand, three hundred ninety-eight".