347273081 has 4 divisors (see below), whose sum is σ = 347336592. Its totient is φ = 347209572.

The previous prime is 347273063. The next prime is 347273099. The reversal of 347273081 is 180372743.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 180372743 = 37 ⋅4874939.

It is an interprime number because it is at equal distance from previous prime (347273063) and next prime (347273099).

It is a cyclic number.

It is not a de Polignac number, because 347273081 - 2¹⁴ = 347256697 is a prime.

It is a super-2 number, since 2×347273081² = 241197185574465122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (347273041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22691 + ... + 34776.

It is an arithmetic number, because the mean of its divisors is an integer number (86834148).

Almost surely, 2^347273081 is an apocalyptic number.

It is an amenable number.

347273081 is a deficient number, since it is larger than the sum of its proper divisors (63511).

347273081 is an equidigital number, since it uses as much as digits as its factorization.

347273081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63510.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 347273081 is about 18635.2644467418. The cubic root of 347273081 is about 702.8948695064.

The spelling of 347273081 in words is "three hundred forty-seven million, two hundred seventy-three thousand, eighty-one".