346939521 has 8 divisors (see below), whose sum is σ = 482698560. Its totient is φ = 221236752.

The previous prime is 346939517. The next prime is 346939531. The reversal of 346939521 is 125939643.

It is a happy number.

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

It is not a de Polignac number, because 346939521 - 2² = 346939517 is a prime.

It is not an unprimeable number, because it can be changed into a prime (346939501) 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, 2513986 + ... + 2514123.

It is an arithmetic number, because the mean of its divisors is an integer number (60337320).

Almost surely, 2^346939521 is an apocalyptic number.

It is an amenable number.

346939521 is a deficient number, since it is larger than the sum of its proper divisors (135759039).

346939521 is a wasteful number, since it uses less digits than its factorization.

346939521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5028135.

The product of its digits is 174960, while the sum is 42.

The square root of 346939521 is about 18626.3125980426. The cubic root of 346939521 is about 702.6697510698.

The spelling of 346939521 in words is "three hundred forty-six million, nine hundred thirty-nine thousand, five hundred twenty-one".