13421907 has 12 divisors (see below), whose sum is σ = 19435104. Its totient is φ = 8925840.

The previous prime is 13421897. The next prime is 13421917. The reversal of 13421907 is 70912431.

It is an interprime number because it is at equal distance from previous prime (13421897) and next prime (13421917).

It is not a de Polignac number, because 13421907 - 2⁶ = 13421843 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13421917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2557 + ... + 5777.

It is an arithmetic number, because the mean of its divisors is an integer number (1619592).

Almost surely, 2^13421907 is an apocalyptic number.

13421907 is a deficient number, since it is larger than the sum of its proper divisors (6013197).

13421907 is a wasteful number, since it uses less digits than its factorization.

13421907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3690 (or 3687 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 13421907 is about 3663.5920897392. The cubic root of 13421907 is about 237.6501403382.

It can be divided in two parts, 1342 and 1907, that added together give a square (3249 = 57²).

The spelling of 13421907 in words is "thirteen million, four hundred twenty-one thousand, nine hundred seven".