346596021 has 6 divisors (see below), whose sum is σ = 500638710. Its totient is φ = 231064008.

The previous prime is 346595999. The next prime is 346596037. The reversal of 346596021 is 120695643.

It is a happy number.

346596021 is a `hidden beast` number, since 3 + 46 + 5 + 9 + 602 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 318622500 + 27973521 = 17850^2 + 5289^2 .

It is not a de Polignac number, because 346596021 - 2⁶ = 346595957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (346596091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19255326 + ... + 19255343.

It is an arithmetic number, because the mean of its divisors is an integer number (83439785).

Almost surely, 2^346596021 is an apocalyptic number.

It is an amenable number.

346596021 is a deficient number, since it is larger than the sum of its proper divisors (154042689).

346596021 is a wasteful number, since it uses less digits than its factorization.

346596021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38510675 (or 38510672 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 346596021 is about 18617.0894878872. The cubic root of 346596021 is about 702.4377733073.

The spelling of 346596021 in words is "three hundred forty-six million, five hundred ninety-six thousand, twenty-one".