13856770 has 16 divisors (see below), whose sum is σ = 25551288. Its totient is φ = 5407360.

The previous prime is 13856753. The next prime is 13856779. The reversal of 13856770 is 7765831.

It can be written as a sum of positive squares in 4 ways, for example, as 6765201 + 7091569 = 2601^2 + 2663^2 .

It is a super-3 number, since 3×13856770³ (a number of 22 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (13856779) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16489 + ... + 17308.

Almost surely, 2^13856770 is an apocalyptic number.

13856770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13856770 is a deficient number, since it is larger than the sum of its proper divisors (11694518).

13856770 is a wasteful number, since it uses less digits than its factorization.

13856770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33845.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 13856770 is about 3722.4682671582. The cubic root of 13856770 is about 240.1894915516.

The spelling of 13856770 in words is "thirteen million, eight hundred fifty-six thousand, seven hundred seventy".