13691948 has 6 divisors (see below), whose sum is σ = 23960916. Its totient is φ = 6845972.

The previous prime is 13691947. The next prime is 13691963. The reversal of 13691948 is 84919631.

It is not an unprimeable number, because it can be changed into a prime (13691941) 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 as a sum of consecutive naturals, namely, 1711490 + ... + 1711497.

It is an arithmetic number, because the mean of its divisors is an integer number (3993486).

Almost surely, 2^13691948 is an apocalyptic number.

It is an amenable number.

13691948 is a deficient number, since it is larger than the sum of its proper divisors (10268968).

13691948 is a wasteful number, since it uses less digits than its factorization.

13691948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3422991 (or 3422989 counting only the distinct ones).

The product of its digits is 46656, while the sum is 41.

The square root of 13691948 is about 3700.2632338794. The cubic root of 13691948 is about 239.2333639140.

The spelling of 13691948 in words is "thirteen million, six hundred ninety-one thousand, nine hundred forty-eight".