403880923 has 2 divisors, whose sum is σ = 403880924. Its totient is φ = 403880922.

The previous prime is 403880887. The next prime is 403880957. The reversal of 403880923 is 329088304.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-403880923 is a prime.

It is not a weakly prime, because it can be changed into another prime (403880963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201940461 + 201940462.

It is an arithmetic number, because the mean of its divisors is an integer number (201940462).

Almost surely, 2^403880923 is an apocalyptic number.

403880923 is a deficient number, since it is larger than the sum of its proper divisors (1).

403880923 is an equidigital number, since it uses as much as digits as its factorization.

403880923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 403880923 is about 20096.7888728523. The cubic root of 403880923 is about 739.1815415312.

The spelling of 403880923 in words is "four hundred three million, eight hundred eighty thousand, nine hundred twenty-three".