40072853 has 2 divisors, whose sum is σ = 40072854. Its totient is φ = 40072852.

The previous prime is 40072847. The next prime is 40072883. The reversal of 40072853 is 35827004.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35307364 + 4765489 = 5942^2 + 2183^2 .

It is a cyclic number.

It is not a de Polignac number, because 40072853 - 2⁶ = 40072789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40072883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20036426 + 20036427.

It is an arithmetic number, because the mean of its divisors is an integer number (20036427).

Almost surely, 2^40072853 is an apocalyptic number.

It is an amenable number.

40072853 is a deficient number, since it is larger than the sum of its proper divisors (1).

40072853 is an equidigital number, since it uses as much as digits as its factorization.

40072853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 40072853 is about 6330.3122355852. The cubic root of 40072853 is about 342.2026915394.

Adding to 40072853 its reverse (35827004), we get a palindrome (75899857).

The spelling of 40072853 in words is "forty million, seventy-two thousand, eight hundred fifty-three".