345771997 has 8 divisors (see below), whose sum is σ = 355251456. Its totient is φ = 336381072.

The previous prime is 345771961. The next prime is 345772003. The reversal of 345771997 is 799177543.

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 345771997 - 2⁷ = 345771869 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 (345721997) 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, 14178 + ... + 29875.

It is an arithmetic number, because the mean of its divisors is an integer number (44406432).

Almost surely, 2^345771997 is an apocalyptic number.

It is an amenable number.

345771997 is a deficient number, since it is larger than the sum of its proper divisors (9479459).

345771997 is a wasteful number, since it uses less digits than its factorization.

345771997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44267.

The product of its digits is 1666980, while the sum is 52.

The square root of 345771997 is about 18594.9454691322. The cubic root of 345771997 is about 701.8806550579.

The spelling of 345771997 in words is "three hundred forty-five million, seven hundred seventy-one thousand, nine hundred ninety-seven".