13421783 has 2 divisors, whose sum is σ = 13421784. Its totient is φ = 13421782.

The previous prime is 13421767. The next prime is 13421797. The reversal of 13421783 is 38712431.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13421783 - 2⁴ = 13421767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13424783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6710891 + 6710892.

It is an arithmetic number, because the mean of its divisors is an integer number (6710892).

Almost surely, 2^13421783 is an apocalyptic number.

13421783 is a deficient number, since it is larger than the sum of its proper divisors (1).

13421783 is an equidigital number, since it uses as much as digits as its factorization.

13421783 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 29.

The square root of 13421783 is about 3663.5751664187. The cubic root of 13421783 is about 237.6494084822.

It can be divided in two parts, 1342 and 1783, that added together give a 5-th power (3125 = 5⁵).

The spelling of 13421783 in words is "thirteen million, four hundred twenty-one thousand, seven hundred eighty-three".