407408923 has 4 divisors (see below), whose sum is σ = 417345768. Its totient is φ = 397472080.

The previous prime is 407408909. The next prime is 407408941. The reversal of 407408923 is 329804704.

It is a happy number.

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-407408923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (407400923) 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, 4968361 + ... + 4968442.

It is an arithmetic number, because the mean of its divisors is an integer number (104336442).

Almost surely, 2^407408923 is an apocalyptic number.

407408923 is a deficient number, since it is larger than the sum of its proper divisors (9936845).

407408923 is an equidigital number, since it uses as much as digits as its factorization.

407408923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9936844.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 407408923 is about 20184.3732377302. The cubic root of 407408923 is about 741.3276161229.

The spelling of 407408923 in words is "four hundred seven million, four hundred eight thousand, nine hundred twenty-three".