13377643 has 2 divisors, whose sum is σ = 13377644. Its totient is φ = 13377642.

The previous prime is 13377631. The next prime is 13377649. The reversal of 13377643 is 34677331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13377643 - 2⁹ = 13377131 is a prime.

It is a super-2 number, since 2×13377643² = 357922664470898, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13377599 and 13377608.

It is not a weakly prime, because it can be changed into another prime (13377649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6688821 + 6688822.

It is an arithmetic number, because the mean of its divisors is an integer number (6688822).

Almost surely, 2^13377643 is an apocalyptic number.

13377643 is a deficient number, since it is larger than the sum of its proper divisors (1).

13377643 is an equidigital number, since it uses as much as digits as its factorization.

13377643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31752, while the sum is 34.

The square root of 13377643 is about 3657.5460352537. The cubic root of 13377643 is about 237.3886044543.

The spelling of 13377643 in words is "thirteen million, three hundred seventy-seven thousand, six hundred forty-three".