13570623 has 12 divisors (see below), whose sum is σ = 21384168. Its totient is φ = 8224560.

The previous prime is 13570603. The next prime is 13570643. The reversal of 13570623 is 32607531.

It is a happy number.

13570623 is a `hidden beast` number, since 1 + 35 + 7 + 0 + 623 = 666.

It is an interprime number because it is at equal distance from previous prime (13570603) and next prime (13570643).

It is not a de Polignac number, because 13570623 - 2⁸ = 13570367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13570603) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68440 + ... + 68637.

It is an arithmetic number, because the mean of its divisors is an integer number (1782014).

Almost surely, 2^13570623 is an apocalyptic number.

13570623 is a deficient number, since it is larger than the sum of its proper divisors (7813545).

13570623 is a wasteful number, since it uses less digits than its factorization.

13570623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137094 (or 137091 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 13570623 is about 3683.8326509221. The cubic root of 13570623 is about 238.5246470579.

The spelling of 13570623 in words is "thirteen million, five hundred seventy thousand, six hundred twenty-three".