40870003 has 2 divisors, whose sum is σ = 40870004. Its totient is φ = 40870002.

The previous prime is 40870001. The next prime is 40870009. The reversal of 40870003 is 30007804.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40870003 - 2¹ = 40870001 is a prime.

Together with 40870001, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (40870001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20435001 + 20435002.

It is an arithmetic number, because the mean of its divisors is an integer number (20435002).

Almost surely, 2^40870003 is an apocalyptic number.

40870003 is a deficient number, since it is larger than the sum of its proper divisors (1).

40870003 is an equidigital number, since it uses as much as digits as its factorization.

40870003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 40870003 is about 6392.9651180028. The cubic root of 40870003 is about 344.4569008753.

Adding to 40870003 its reverse (30007804), we get a palindrome (70877807).

The spelling of 40870003 in words is "forty million, eight hundred seventy thousand, three".