346477661 has 4 divisors (see below), whose sum is σ = 347085024. Its totient is φ = 345870300.

The previous prime is 346477643. The next prime is 346477667. The reversal of 346477661 is 166774643.

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 a cyclic number.

It is not a de Polignac number, because 346477661 - 2¹⁸ = 346215517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (346477667) 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, 302825 + ... + 303966.

It is an arithmetic number, because the mean of its divisors is an integer number (86771256).

Almost surely, 2^346477661 is an apocalyptic number.

It is an amenable number.

346477661 is a deficient number, since it is larger than the sum of its proper divisors (607363).

346477661 is an equidigital number, since it uses as much as digits as its factorization.

346477661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607362.

The product of its digits is 508032, while the sum is 44.

The square root of 346477661 is about 18613.9104166749. The cubic root of 346477661 is about 702.3578050872.

The spelling of 346477661 in words is "three hundred forty-six million, four hundred seventy-seven thousand, six hundred sixty-one".