346774721 has 16 divisors (see below), whose sum is σ = 385223040. Its totient is φ = 310652160.

The previous prime is 346774697. The next prime is 346774723. The reversal of 346774721 is 127477643.

It is a cyclic number.

It is not a de Polignac number, because 346774721 - 2¹⁴ = 346758337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (346774723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30050 + ... + 39956.

It is an arithmetic number, because the mean of its divisors is an integer number (24076440).

Almost surely, 2^346774721 is an apocalyptic number.

It is an amenable number.

346774721 is a deficient number, since it is larger than the sum of its proper divisors (38448319).

346774721 is a wasteful number, since it uses less digits than its factorization.

346774721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10024.

The product of its digits is 197568, while the sum is 41.

The square root of 346774721 is about 18621.8882232710. Note that the first 3 decimals coincide. The cubic root of 346774721 is about 702.5584748883.

The spelling of 346774721 in words is "three hundred forty-six million, seven hundred seventy-four thousand, seven hundred twenty-one".