13802357 has 4 divisors (see below), whose sum is σ = 13939116. Its totient is φ = 13665600.

The previous prime is 13802353. The next prime is 13802377. The reversal of 13802357 is 75320831.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11519236 + 2283121 = 3394^2 + 1511^2 .

It is a cyclic number.

It is not a de Polignac number, because 13802357 - 2² = 13802353 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13802353) 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, 68228 + ... + 68429.

It is an arithmetic number, because the mean of its divisors is an integer number (3484779).

Almost surely, 2^13802357 is an apocalyptic number.

It is an amenable number.

13802357 is a deficient number, since it is larger than the sum of its proper divisors (136759).

13802357 is a wasteful number, since it uses less digits than its factorization.

13802357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136758.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 13802357 is about 3715.1523521923. The cubic root of 13802357 is about 239.8746857369.

The spelling of 13802357 in words is "thirteen million, eight hundred two thousand, three hundred fifty-seven".