693919441 has 2 divisors, whose sum is σ = 693919442. Its totient is φ = 693919440.

The previous prime is 693919411. The next prime is 693919459. The reversal of 693919441 is 144919396.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 660233025 + 33686416 = 25695^2 + 5804^2 .

It is a cyclic number.

It is not a de Polignac number, because 693919441 - 2⁵ = 693919409 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 693919391 and 693919400.

It is not a weakly prime, because it can be changed into another prime (693919411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 346959720 + 346959721.

It is an arithmetic number, because the mean of its divisors is an integer number (346959721).

Almost surely, 2^693919441 is an apocalyptic number.

It is an amenable number.

693919441 is a deficient number, since it is larger than the sum of its proper divisors (1).

693919441 is an equidigital number, since it uses as much as digits as its factorization.

693919441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 209952, while the sum is 46.

The square root of 693919441 is about 26342.3507113545. The cubic root of 693919441 is about 885.3255916283.

The spelling of 693919441 in words is "six hundred ninety-three million, nine hundred nineteen thousand, four hundred forty-one".