348877891 has 2 divisors, whose sum is σ = 348877892. Its totient is φ = 348877890.

The previous prime is 348877873. The next prime is 348877901. The reversal of 348877891 is 198778843.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 348877891 - 2²³ = 340489283 is a prime.

It is not a weakly prime, because it can be changed into another prime (348877811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174438945 + 174438946.

It is an arithmetic number, because the mean of its divisors is an integer number (174438946).

Almost surely, 2^348877891 is an apocalyptic number.

348877891 is a deficient number, since it is larger than the sum of its proper divisors (1).

348877891 is an equidigital number, since it uses as much as digits as its factorization.

348877891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2709504, while the sum is 55.

The square root of 348877891 is about 18678.2732338940. The cubic root of 348877891 is about 703.9759395563.

It can be divided in two parts, 34887 and 7891, that added together give a triangular number (42778 = T₂₉₂).

The spelling of 348877891 in words is "three hundred forty-eight million, eight hundred seventy-seven thousand, eight hundred ninety-one".