12398770 has 8 divisors (see below), whose sum is σ = 22317804. Its totient is φ = 4959504.

The previous prime is 12398759. The next prime is 12398777. The reversal of 12398770 is 7789321.

12398770 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11881809 + 516961 = 3447^2 + 719^2 .

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

It is not an unprimeable number, because it can be changed into a prime (12398777) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 619929 + ... + 619948.

Almost surely, 2^12398770 is an apocalyptic number.

12398770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12398770 is a deficient number, since it is larger than the sum of its proper divisors (9919034).

12398770 is a wasteful number, since it uses less digits than its factorization.

12398770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1239884.

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 12398770 is about 3521.1887197366. The cubic root of 12398770 is about 231.4512521228.

The spelling of 12398770 in words is "twelve million, three hundred ninety-eight thousand, seven hundred seventy".