348625991 has 8 divisors (see below), whose sum is σ = 404376960. Its totient is φ = 294361848.

The previous prime is 348625961. The next prime is 348625999. The reversal of 348625991 is 199526843.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 348625991 - 2¹⁴ = 348609607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (348625999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 371201 + ... + 372138.

It is an arithmetic number, because the mean of its divisors is an integer number (50547120).

Almost surely, 2^348625991 is an apocalyptic number.

348625991 is a deficient number, since it is larger than the sum of its proper divisors (55750969).

348625991 is an equidigital number, since it uses as much as digits as its factorization.

348625991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743413.

The product of its digits is 466560, while the sum is 47.

The square root of 348625991 is about 18671.5288875871. The cubic root of 348625991 is about 703.8064683837.

The spelling of 348625991 in words is "three hundred forty-eight million, six hundred twenty-five thousand, nine hundred ninety-one".