348748991 has 2 divisors, whose sum is σ = 348748992. Its totient is φ = 348748990.

The previous prime is 348748973. The next prime is 348749053. The reversal of 348748991 is 199847843.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 348748991 - 2²² = 344554687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (348748921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174374495 + 174374496.

It is an arithmetic number, because the mean of its divisors is an integer number (174374496).

Almost surely, 2^348748991 is an apocalyptic number.

348748991 is a deficient number, since it is larger than the sum of its proper divisors (1).

348748991 is an equidigital number, since it uses as much as digits as its factorization.

348748991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1741824, while the sum is 53.

The square root of 348748991 is about 18674.8223820201. The cubic root of 348748991 is about 703.8892294888.

The spelling of 348748991 in words is "three hundred forty-eight million, seven hundred forty-eight thousand, nine hundred ninety-one".