348621666 has 8 divisors (see below), whose sum is σ = 697243344. Its totient is φ = 116207220.

The previous prime is 348621661. The next prime is 348621697. The reversal of 348621666 is 666126843.

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

348621666 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (348621661) 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, 29051800 + ... + 29051811.

It is an arithmetic number, because the mean of its divisors is an integer number (87155418).

Almost surely, 2^348621666 is an apocalyptic number.

348621666 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

348621666 is a wasteful number, since it uses less digits than its factorization.

348621666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58103616.

The product of its digits is 248832, while the sum is 42.

The square root of 348621666 is about 18671.4130691815. The cubic root of 348621666 is about 703.8035579337.

It can be divided in two parts, 3486 and 21666, that added together give a palindrome (25152).

The spelling of 348621666 in words is "three hundred forty-eight million, six hundred twenty-one thousand, six hundred sixty-six".