13709955 has 48 divisors (see below), whose sum is σ = 26659584. Its totient is φ = 5987520.

The previous prime is 13709929. The next prime is 13709957. The reversal of 13709955 is 55990731.

It is not a de Polignac number, because 13709955 - 2⁵ = 13709923 is a prime.

It is a super-2 number, since 2×13709955² = 375925732204050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13709957) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16500 + ... + 17310.

It is an arithmetic number, because the mean of its divisors is an integer number (555408).

Almost surely, 2^13709955 is an apocalyptic number.

13709955 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13709955 is a deficient number, since it is larger than the sum of its proper divisors (12949629).

13709955 is a wasteful number, since it uses less digits than its factorization.

13709955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856 (or 849 counting only the distinct ones).

The product of its (nonzero) digits is 42525, while the sum is 39.

The square root of 13709955 is about 3702.6956396658. The cubic root of 13709955 is about 239.3381940925.

It can be divided in two parts, 1370 and 9955, that added together give a triangular number (11325 = T₁₅₀).

The spelling of 13709955 in words is "thirteen million, seven hundred nine thousand, nine hundred fifty-five".