345725447 has 8 divisors (see below), whose sum is σ = 375956496. Its totient is φ = 316593792.

The previous prime is 345725431. The next prime is 345725477. The reversal of 345725447 is 744527543.

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

It is a cyclic number.

It is not a de Polignac number, because 345725447 - 2⁴ = 345725431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345725477) 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, 274193 + ... + 275450.

It is an arithmetic number, because the mean of its divisors is an integer number (46994562).

Almost surely, 2^345725447 is an apocalyptic number.

345725447 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

345725447 is a deficient number, since it is larger than the sum of its proper divisors (30231049).

345725447 is a wasteful number, since it uses less digits than its factorization.

345725447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549697.

The product of its digits is 470400, while the sum is 41.

The square root of 345725447 is about 18593.6937427720. The cubic root of 345725447 is about 701.8491564489.

The spelling of 345725447 in words is "three hundred forty-five million, seven hundred twenty-five thousand, four hundred forty-seven".