405032623 has 2 divisors, whose sum is σ = 405032624. Its totient is φ = 405032622.

The previous prime is 405032597. The next prime is 405032629. The reversal of 405032623 is 326230504.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 405032623 - 2¹⁷ = 404901551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (405032629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202516311 + 202516312.

It is an arithmetic number, because the mean of its divisors is an integer number (202516312).

Almost surely, 2^405032623 is an apocalyptic number.

405032623 is a deficient number, since it is larger than the sum of its proper divisors (1).

405032623 is an equidigital number, since it uses as much as digits as its factorization.

405032623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 405032623 is about 20125.4223061281. The cubic root of 405032623 is about 739.8834872563.

The spelling of 405032623 in words is "four hundred five million, thirty-two thousand, six hundred twenty-three".