402993673 has 2 divisors, whose sum is σ = 402993674. Its totient is φ = 402993672.

The previous prime is 402993631. The next prime is 402993683. The reversal of 402993673 is 376399204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 334633849 + 68359824 = 18293^2 + 8268^2 .

It is a cyclic number.

It is not a de Polignac number, because 402993673 - 2⁹ = 402993161 is a prime.

It is not a weakly prime, because it can be changed into another prime (402993623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201496836 + 201496837.

It is an arithmetic number, because the mean of its divisors is an integer number (201496837).

Almost surely, 2^402993673 is an apocalyptic number.

It is an amenable number.

402993673 is a deficient number, since it is larger than the sum of its proper divisors (1).

402993673 is an equidigital number, since it uses as much as digits as its factorization.

402993673 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 244944, while the sum is 43.

The square root of 402993673 is about 20074.7023141067. The cubic root of 402993673 is about 738.6398640023.

The spelling of 402993673 in words is "four hundred two million, nine hundred ninety-three thousand, six hundred seventy-three".