673501457 has 2 divisors, whose sum is σ = 673501458. Its totient is φ = 673501456.

The previous prime is 673501429. The next prime is 673501459. The reversal of 673501457 is 754105376.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 453008656 + 220492801 = 21284^2 + 14849^2 .

It is a cyclic number.

It is not a de Polignac number, because 673501457 - 2⁸ = 673501201 is a prime.

It is a super-2 number, since 2×673501457² = 907208425162245698, which contains 22 as substring.

Together with 673501459, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 673501457.

It is not a weakly prime, because it can be changed into another prime (673501459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336750728 + 336750729.

It is an arithmetic number, because the mean of its divisors is an integer number (336750729).

Almost surely, 2^673501457 is an apocalyptic number.

It is an amenable number.

673501457 is a deficient number, since it is larger than the sum of its proper divisors (1).

673501457 is an equidigital number, since it uses as much as digits as its factorization.

673501457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 88200, while the sum is 38.

The square root of 673501457 is about 25951.9066158924. The cubic root of 673501457 is about 876.5556899203. Note that the first 3 decimals are identical.

The spelling of 673501457 in words is "six hundred seventy-three million, five hundred one thousand, four hundred fifty-seven".