4001357 has 2 divisors, whose sum is σ = 4001358. Its totient is φ = 4001356.

The previous prime is 4001339. The next prime is 4001369. The reversal of 4001357 is 7531004.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2515396 + 1485961 = 1586^2 + 1219^2 .

It is a cyclic number.

It is not a de Polignac number, because 4001357 - 2¹⁶ = 3935821 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4000357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2000678 + 2000679.

It is an arithmetic number, because the mean of its divisors is an integer number (2000679).

Almost surely, 2^4001357 is an apocalyptic number.

It is an amenable number.

4001357 is a deficient number, since it is larger than the sum of its proper divisors (1).

4001357 is an equidigital number, since it uses as much as digits as its factorization.

4001357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 4001357 is about 2000.3392212322. The cubic root of 4001357 is about 158.7580540275.

The spelling of 4001357 in words is "four million, one thousand, three hundred fifty-seven".