3378405893 has 2 divisors, whose sum is σ = 3378405894. Its totient is φ = 3378405892.

The previous prime is 3378405887. The next prime is 3378405907. The reversal of 3378405893 is 3985048733.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3304755169 + 73650724 = 57487^2 + 8582^2 .

It is a cyclic number.

It is not a de Polignac number, because 3378405893 - 2⁶ = 3378405829 is a prime.

It is a super-2 number, since 2×3378405893² = 22827252755714254898, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3378405803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1689202946 + 1689202947.

It is an arithmetic number, because the mean of its divisors is an integer number (1689202947).

Almost surely, 2^3378405893 is an apocalyptic number.

It is an amenable number.

3378405893 is a deficient number, since it is larger than the sum of its proper divisors (1).

3378405893 is an equidigital number, since it uses as much as digits as its factorization.

3378405893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2177280, while the sum is 50.

The square root of 3378405893 is about 58124.0560611525. The cubic root of 3378405893 is about 1500.5044071040.

The spelling of 3378405893 in words is "three billion, three hundred seventy-eight million, four hundred five thousand, eight hundred ninety-three".