13945829 has 4 divisors (see below), whose sum is σ = 14679840. Its totient is φ = 13211820.

The previous prime is 13945823. The next prime is 13945853. The reversal of 13945829 is 92854931.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13945829 - 2⁸ = 13945573 is a prime.

It is a super-2 number, since 2×13945829² = 388972292994482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13945823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 366977 + ... + 367014.

It is an arithmetic number, because the mean of its divisors is an integer number (3669960).

Almost surely, 2^13945829 is an apocalyptic number.

13945829 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

13945829 is a deficient number, since it is larger than the sum of its proper divisors (734011).

13945829 is an equidigital number, since it uses as much as digits as its factorization.

13945829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734010.

The product of its digits is 77760, while the sum is 41.

The square root of 13945829 is about 3734.4114663491. The cubic root of 13945829 is about 240.7029679087.

The spelling of 13945829 in words is "thirteen million, nine hundred forty-five thousand, eight hundred twenty-nine".