345193897 has 16 divisors (see below), whose sum is σ = 368640000. Its totient is φ = 322704720.

The previous prime is 345193853. The next prime is 345193903. The reversal of 345193897 is 798391543.

It is a cyclic number.

It is not a de Polignac number, because 345193897 - 2⁷ = 345193769 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 345193897.

It is not an unprimeable number, because it can be changed into a prime (345193847) 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, 113604 + ... + 116602.

It is an arithmetic number, because the mean of its divisors is an integer number (23040000).

Almost surely, 2^345193897 is an apocalyptic number.

It is an amenable number.

345193897 is a deficient number, since it is larger than the sum of its proper divisors (23446103).

345193897 is a wasteful number, since it uses less digits than its factorization.

345193897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3156.

The product of its digits is 816480, while the sum is 49.

The square root of 345193897 is about 18579.3944196252. The cubic root of 345193897 is about 701.4892762009.

It can be divided in two parts, 34519 and 3897, that added together give a 4-th power (38416 = 14⁴).

The spelling of 345193897 in words is "three hundred forty-five million, one hundred ninety-three thousand, eight hundred ninety-seven".