40603697 has 4 divisors (see below), whose sum is σ = 40617060. Its totient is φ = 40590336.

The previous prime is 40603681. The next prime is 40603727. The reversal of 40603697 is 79630604.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 37834801 + 2768896 = 6151^2 + 1664^2 .

It is a cyclic number.

It is not a de Polignac number, because 40603697 - 2⁴ = 40603681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40603637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 329 + ... + 9017.

It is an arithmetic number, because the mean of its divisors is an integer number (10154265).

Almost surely, 2^40603697 is an apocalyptic number.

It is an amenable number.

40603697 is a deficient number, since it is larger than the sum of its proper divisors (13363).

40603697 is an equidigital number, since it uses as much as digits as its factorization.

40603697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13362.

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 40603697 is about 6372.1030280434. The cubic root of 40603697 is about 343.7071178684.

The spelling of 40603697 in words is "forty million, six hundred three thousand, six hundred ninety-seven".