12277398 has 16 divisors (see below), whose sum is σ = 28062720. Its totient is φ = 3507816.

The previous prime is 12277393. The next prime is 12277399. The reversal of 12277398 is 89377221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12277393) 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, 146118 + ... + 146201.

It is an arithmetic number, because the mean of its divisors is an integer number (1753920).

Almost surely, 2^12277398 is an apocalyptic number.

12277398 is an abundant number, since it is smaller than the sum of its proper divisors (15785322).

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

12277398 is a wasteful number, since it uses less digits than its factorization.

12277398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292331.

The product of its digits is 42336, while the sum is 39.

The square root of 12277398 is about 3503.9118139588. The cubic root of 12277398 is about 230.6935461379.

The spelling of 12277398 in words is "twelve million, two hundred seventy-seven thousand, three hundred ninety-eight".