3454778893 has 2 divisors, whose sum is σ = 3454778894. Its totient is φ = 3454778892.

The previous prime is 3454778863. The next prime is 3454778897. The reversal of 3454778893 is 3988774543.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2294218404 + 1160560489 = 47898^2 + 34067^2 .

It is a cyclic number.

It is not a de Polignac number, because 3454778893 - 2⁵ = 3454778861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3454778897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1727389446 + 1727389447.

It is an arithmetic number, because the mean of its divisors is an integer number (1727389447).

Almost surely, 2^3454778893 is an apocalyptic number.

It is an amenable number.

3454778893 is a deficient number, since it is larger than the sum of its proper divisors (1).

3454778893 is an equidigital number, since it uses as much as digits as its factorization.

3454778893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20321280, while the sum is 58.

The square root of 3454778893 is about 58777.3671832960. The cubic root of 3454778893 is about 1511.7271719516.

The spelling of 3454778893 in words is "three billion, four hundred fifty-four million, seven hundred seventy-eight thousand, eight hundred ninety-three".