13857465 has 32 divisors (see below), whose sum is σ = 24247296. Its totient is φ = 6727680.

The previous prime is 13857461. The next prime is 13857509. The reversal of 13857465 is 56475831.

It is not a de Polignac number, because 13857465 - 2² = 13857461 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13857461) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7029 + ... + 8781.

It is an arithmetic number, because the mean of its divisors is an integer number (757728).

Almost surely, 2^13857465 is an apocalyptic number.

13857465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13857465 is a deficient number, since it is larger than the sum of its proper divisors (10389831).

13857465 is a wasteful number, since it uses less digits than its factorization.

13857465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1809.

The product of its digits is 100800, while the sum is 39.

The square root of 13857465 is about 3722.5616180260. The cubic root of 13857465 is about 240.1935071316.

The spelling of 13857465 in words is "thirteen million, eight hundred fifty-seven thousand, four hundred sixty-five".