61673 has 2 divisors, whose sum is σ = 61674. Its totient is φ = 61672.

The previous prime is 61667. The next prime is 61681. The reversal of 61673 is 37616.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61504 + 169 = 248^2 + 13^2 .

It is a cyclic number.

It is not a de Polignac number, because 61673 - 2⁴ = 61657 is a prime.

It is a d-powerful number, because it can be written as 6 + 1 + 6³ + 7⁴ + 3¹⁰ .

It is not a weakly prime, because it can be changed into another prime (61603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30836 + 30837.

It is an arithmetic number, because the mean of its divisors is an integer number (30837).

2⁶¹⁶⁷³ is an apocalyptic number.

It is an amenable number.

61673 is a deficient number, since it is larger than the sum of its proper divisors (1).

61673 is an equidigital number, since it uses as much as digits as its factorization.

61673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 756, while the sum is 23.

The square root of 61673 is about 248.3404920668. The cubic root of 61673 is about 39.5092111190.

The spelling of 61673 in words is "sixty-one thousand, six hundred seventy-three".