406623733 has 2 divisors, whose sum is σ = 406623734. Its totient is φ = 406623732.

The previous prime is 406623689. The next prime is 406623757. The reversal of 406623733 is 337326604.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 305480484 + 101143249 = 17478^2 + 10057^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-406623733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (406623793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203311866 + 203311867.

It is an arithmetic number, because the mean of its divisors is an integer number (203311867).

Almost surely, 2^406623733 is an apocalyptic number.

It is an amenable number.

406623733 is a deficient number, since it is larger than the sum of its proper divisors (1).

406623733 is an equidigital number, since it uses as much as digits as its factorization.

406623733 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 34.

The square root of 406623733 is about 20164.9134141459. The cubic root of 406623733 is about 740.8510618600.

The spelling of 406623733 in words is "four hundred six million, six hundred twenty-three thousand, seven hundred thirty-three".