345727451 has 4 divisors (see below), whose sum is σ = 347072952. Its totient is φ = 344381952.

The previous prime is 345727387. The next prime is 345727511. The reversal of 345727451 is 154727543.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 345727451 - 2⁶ = 345727387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345723451) 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, 672365 + ... + 672878.

It is an arithmetic number, because the mean of its divisors is an integer number (86768238).

Almost surely, 2^345727451 is an apocalyptic number.

345727451 is a deficient number, since it is larger than the sum of its proper divisors (1345501).

345727451 is a wasteful number, since it uses less digits than its factorization.

345727451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1345500.

The product of its digits is 117600, while the sum is 38.

The square root of 345727451 is about 18593.7476319326. The cubic root of 345727451 is about 701.8505125375.

The spelling of 345727451 in words is "three hundred forty-five million, seven hundred twenty-seven thousand, four hundred fifty-one".