40897183 has 4 divisors (see below), whose sum is σ = 40968640. Its totient is φ = 40825728.

The previous prime is 40897147. The next prime is 40897201. The reversal of 40897183 is 38179804.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40897183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40897783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34863 + ... + 36016.

It is an arithmetic number, because the mean of its divisors is an integer number (10242160).

Almost surely, 2^40897183 is an apocalyptic number.

40897183 is a deficient number, since it is larger than the sum of its proper divisors (71457).

40897183 is an equidigital number, since it uses as much as digits as its factorization.

40897183 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71456.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 40897183 is about 6395.0905388431. The cubic root of 40897183 is about 344.5332426355.

The spelling of 40897183 in words is "forty million, eight hundred ninety-seven thousand, one hundred eighty-three".