672659573 has 2 divisors, whose sum is σ = 672659574. Its totient is φ = 672659572.

The previous prime is 672659569. The next prime is 672659579. The reversal of 672659573 is 375956276.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 623351089 + 49308484 = 24967^2 + 7022^2 .

It is a cyclic number.

It is not a de Polignac number, because 672659573 - 2² = 672659569 is a prime.

It is a super-2 number, since 2×672659573² = 904941802297084658, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (672659579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336329786 + 336329787.

It is an arithmetic number, because the mean of its divisors is an integer number (336329787).

Almost surely, 2^672659573 is an apocalyptic number.

It is an amenable number.

672659573 is a deficient number, since it is larger than the sum of its proper divisors (1).

672659573 is an equidigital number, since it uses as much as digits as its factorization.

672659573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2381400, while the sum is 50.

The square root of 672659573 is about 25935.6814639600. The cubic root of 672659573 is about 876.1903029803.

The spelling of 672659573 in words is "six hundred seventy-two million, six hundred fifty-nine thousand, five hundred seventy-three".