403263493 has 2 divisors, whose sum is σ = 403263494. Its totient is φ = 403263492.

The previous prime is 403263433. The next prime is 403263499. The reversal of 403263493 is 394362304.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 398321764 + 4941729 = 19958^2 + 2223^2 .

It is a cyclic number.

It is not a de Polignac number, because 403263493 - 2²¹ = 401166341 is a prime.

It is a super-2 number, since 2×403263493² = 325242889573122098, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (403263499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201631746 + 201631747.

It is an arithmetic number, because the mean of its divisors is an integer number (201631747).

Almost surely, 2^403263493 is an apocalyptic number.

It is an amenable number.

403263493 is a deficient number, since it is larger than the sum of its proper divisors (1).

403263493 is an equidigital number, since it uses as much as digits as its factorization.

403263493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 34.

The square root of 403263493 is about 20081.4215881247. The cubic root of 403263493 is about 738.8046766353.

The spelling of 403263493 in words is "four hundred three million, two hundred sixty-three thousand, four hundred ninety-three".