40863853 has 2 divisors, whose sum is σ = 40863854. Its totient is φ = 40863852.

The previous prime is 40863841. The next prime is 40863881. The reversal of 40863853 is 35836804.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39917124 + 946729 = 6318^2 + 973^2 .

It is a cyclic number.

It is not a de Polignac number, because 40863853 - 2²¹ = 38766701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40863833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20431926 + 20431927.

It is an arithmetic number, because the mean of its divisors is an integer number (20431927).

Almost surely, 2^40863853 is an apocalyptic number.

It is an amenable number.

40863853 is a deficient number, since it is larger than the sum of its proper divisors (1).

40863853 is an equidigital number, since it uses as much as digits as its factorization.

40863853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 40863853 is about 6392.4841024441. The cubic root of 40863853 is about 344.4396223821.

It can be divided in two parts, 408 and 63853, that added together give a triangular number (64261 = T₃₅₈).

The spelling of 40863853 in words is "forty million, eight hundred sixty-three thousand, eight hundred fifty-three".