346520661 has 4 divisors (see below), whose sum is σ = 462027552. Its totient is φ = 231013772.

The previous prime is 346520659. The next prime is 346520663. The reversal of 346520661 is 166025643.

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.

It is an interprime number because it is at equal distance from previous prime (346520659) and next prime (346520663).

It is a cyclic number.

It is not a de Polignac number, because 346520661 - 2¹ = 346520659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (346520663) 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, 57753441 + ... + 57753446.

It is an arithmetic number, because the mean of its divisors is an integer number (115506888).

Almost surely, 2^346520661 is an apocalyptic number.

It is an amenable number.

346520661 is a deficient number, since it is larger than the sum of its proper divisors (115506891).

346520661 is a wasteful number, since it uses less digits than its factorization.

346520661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115506890.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 346520661 is about 18615.0654309890. The cubic root of 346520661 is about 702.3868595206.

The spelling of 346520661 in words is "three hundred forty-six million, five hundred twenty thousand, six hundred sixty-one".