40623347 has 4 divisors (see below), whose sum is σ = 41568120. Its totient is φ = 39678576.

The previous prime is 40623343. The next prime is 40623371. The reversal of 40623347 is 74332604.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 40623347 - 2² = 40623343 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40623343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 472322 + ... + 472407.

It is an arithmetic number, because the mean of its divisors is an integer number (10392030).

Almost surely, 2^40623347 is an apocalyptic number.

40623347 is a deficient number, since it is larger than the sum of its proper divisors (944773).

40623347 is an equidigital number, since it uses as much as digits as its factorization.

40623347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 944772.

The product of its (nonzero) digits is 12096, while the sum is 29.

The square root of 40623347 is about 6373.6447186833. The cubic root of 40623347 is about 343.7625541641.

The spelling of 40623347 in words is "forty million, six hundred twenty-three thousand, three hundred forty-seven".