40753897 has 2 divisors, whose sum is σ = 40753898. Its totient is φ = 40753896.

The previous prime is 40753891. The next prime is 40753939. The reversal of 40753897 is 79835704.

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., 35236096 + 5517801 = 5936^2 + 2349^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40753897 is a prime.

It is not a weakly prime, because it can be changed into another prime (40753891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20376948 + 20376949.

It is an arithmetic number, because the mean of its divisors is an integer number (20376949).

Almost surely, 2^40753897 is an apocalyptic number.

It is an amenable number.

40753897 is a deficient number, since it is larger than the sum of its proper divisors (1).

40753897 is an equidigital number, since it uses as much as digits as its factorization.

40753897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 211680, while the sum is 43.

The square root of 40753897 is about 6383.8778967020. The cubic root of 40753897 is about 344.1304067730.

The spelling of 40753897 in words is "forty million, seven hundred fifty-three thousand, eight hundred ninety-seven".