3856537 has 2 divisors, whose sum is σ = 3856538. Its totient is φ = 3856536.

The previous prime is 3856519. The next prime is 3856549. The reversal of 3856537 is 7356583.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3426201 + 430336 = 1851^2 + 656^2 .

It is a cyclic number.

It is not a de Polignac number, because 3856537 - 2⁷ = 3856409 is a prime.

It is a super-4 number, since 4×3856537⁴ (a number of 27 digits) contains 4444 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 3856496 and 3856505.

It is not a weakly prime, because it can be changed into another prime (3856597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1928268 + 1928269.

It is an arithmetic number, because the mean of its divisors is an integer number (1928269).

Almost surely, 2^3856537 is an apocalyptic number.

It is an amenable number.

3856537 is a deficient number, since it is larger than the sum of its proper divisors (1).

3856537 is an equidigital number, since it uses as much as digits as its factorization.

3856537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75600, while the sum is 37.

The square root of 3856537 is about 1963.8067623878. The cubic root of 3856537 is about 156.8191759702.

The spelling of 3856537 in words is "three million, eight hundred fifty-six thousand, five hundred thirty-seven".