719654461 has 2 divisors, whose sum is σ = 719654462. Its totient is φ = 719654460.

The previous prime is 719654423. The next prime is 719654473. The reversal of 719654461 is 164456917.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 689062500 + 30591961 = 26250^2 + 5531^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-719654461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (719654161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 359827230 + 359827231.

It is an arithmetic number, because the mean of its divisors is an integer number (359827231).

Almost surely, 2^719654461 is an apocalyptic number.

It is an amenable number.

719654461 is a deficient number, since it is larger than the sum of its proper divisors (1).

719654461 is an equidigital number, since it uses as much as digits as its factorization.

719654461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 43.

The square root of 719654461 is about 26826.3762181924. The cubic root of 719654461 is about 896.1375467284.

The spelling of 719654461 in words is "seven hundred nineteen million, six hundred fifty-four thousand, four hundred sixty-one".