13961898 has 12 divisors (see below), whose sum is σ = 30250818. Its totient is φ = 4653960.

The previous prime is 13961891. The next prime is 13961917. The reversal of 13961898 is 89816931.

It can be written as a sum of positive squares in only one way, i.e., 12131289 + 1830609 = 3483^2 + 1353^2 .

It is not an unprimeable number, because it can be changed into a prime (13961891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 387813 + ... + 387848.

Almost surely, 2^13961898 is an apocalyptic number.

13961898 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

13961898 is an abundant number, since it is smaller than the sum of its proper divisors (16288920).

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

13961898 is a wasteful number, since it uses less digits than its factorization.

13961898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775669 (or 775666 counting only the distinct ones).

The product of its digits is 93312, while the sum is 45.

The square root of 13961898 is about 3736.5623238480. The cubic root of 13961898 is about 240.7953819528.

The spelling of 13961898 in words is "thirteen million, nine hundred sixty-one thousand, eight hundred ninety-eight".