1673508493 has 2 divisors, whose sum is σ = 1673508494. Its totient is φ = 1673508492.

The previous prime is 1673508479. The next prime is 1673508517. The reversal of 1673508493 is 3948053761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1317544804 + 355963689 = 36298^2 + 18867^2 .

It is a cyclic number.

It is not a de Polignac number, because 1673508493 - 2²⁹ = 1136637581 is a prime.

It is a super-2 number, since 2×1673508493² = 5601261352286262098, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1673508593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 836754246 + 836754247.

It is an arithmetic number, because the mean of its divisors is an integer number (836754247).

Almost surely, 2^1673508493 is an apocalyptic number.

It is an amenable number.

1673508493 is a deficient number, since it is larger than the sum of its proper divisors (1).

1673508493 is an equidigital number, since it uses as much as digits as its factorization.

1673508493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 544320, while the sum is 46.

The square root of 1673508493 is about 40908.5381430332. The cubic root of 1673508493 is about 1187.2512629607.

The spelling of 1673508493 in words is "one billion, six hundred seventy-three million, five hundred eight thousand, four hundred ninety-three".