347812056 has 80 divisors (see below), whose sum is σ = 977486400. Its totient is φ = 115546176.

The previous prime is 347812019. The next prime is 347812093. The reversal of 347812056 is 650218743.

It is an interprime number because it is at equal distance from previous prime (347812019) and next prime (347812093).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 347812056.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 240985 + ... + 242423.

It is an arithmetic number, because the mean of its divisors is an integer number (12218580).

Almost surely, 2^347812056 is an apocalyptic number.

347812056 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 347812056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (488743200).

347812056 is an abundant number, since it is smaller than the sum of its proper divisors (629674344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

347812056 is a wasteful number, since it uses less digits than its factorization.

347812056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1830 (or 1817 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 347812056 is about 18649.7199978981. The cubic root of 347812056 is about 703.2583173339.

The spelling of 347812056 in words is "three hundred forty-seven million, eight hundred twelve thousand, fifty-six".