91950673 has 2 divisors, whose sum is σ = 91950674. Its totient is φ = 91950672.

The previous prime is 91950629. The next prime is 91950697. The reversal of 91950673 is 37605919.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46144849 + 45805824 = 6793^2 + 6768^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91950673 is a prime.

It is not a weakly prime, because it can be changed into another prime (91950073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45975336 + 45975337.

It is an arithmetic number, because the mean of its divisors is an integer number (45975337).

Almost surely, 2^91950673 is an apocalyptic number.

It is an amenable number.

91950673 is a deficient number, since it is larger than the sum of its proper divisors (1).

91950673 is an equidigital number, since it uses as much as digits as its factorization.

91950673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51030, while the sum is 40.

The square root of 91950673 is about 9589.0913542421. The cubic root of 91950673 is about 451.3550480696.

The spelling of 91950673 in words is "ninety-one million, nine hundred fifty thousand, six hundred seventy-three".