4055399 has 2 divisors, whose sum is σ = 4055400. Its totient is φ = 4055398.

The previous prime is 4055393. The next prime is 4055423. The reversal of 4055399 is 9935504.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4055399 - 2⁸ = 4055143 is a prime.

It is a super-2 number, since 2×4055399² = 32892522098402, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4055393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2027699 + 2027700.

It is an arithmetic number, because the mean of its divisors is an integer number (2027700).

Almost surely, 2^4055399 is an apocalyptic number.

4055399 is a deficient number, since it is larger than the sum of its proper divisors (1).

4055399 is an equidigital number, since it uses as much as digits as its factorization.

4055399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24300, while the sum is 35.

The square root of 4055399 is about 2013.8021253341. The cubic root of 4055399 is about 159.4695847115.

The spelling of 4055399 in words is "four million, fifty-five thousand, three hundred ninety-nine".