349454887 has 2 divisors, whose sum is σ = 349454888. Its totient is φ = 349454886.

The previous prime is 349454879. The next prime is 349454891. The reversal of 349454887 is 788454943.

It is a strong prime.

It is an emirp because it is prime and its reverse (788454943) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 349454887 - 2³ = 349454879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (349454827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174727443 + 174727444.

It is an arithmetic number, because the mean of its divisors is an integer number (174727444).

Almost surely, 2^349454887 is an apocalyptic number.

349454887 is a deficient number, since it is larger than the sum of its proper divisors (1).

349454887 is an equidigital number, since it uses as much as digits as its factorization.

349454887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3870720, while the sum is 52.

The square root of 349454887 is about 18693.7124991265. The cubic root of 349454887 is about 704.3638188965.

The spelling of 349454887 in words is "three hundred forty-nine million, four hundred fifty-four thousand, eight hundred eighty-seven".