345969497 has 4 divisors (see below), whose sum is σ = 346346880. Its totient is φ = 345592116.

The previous prime is 345969493. The next prime is 345969509. The reversal of 345969497 is 794969543.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 794969543 = 7451 ⋅106693.

It is a cyclic number.

It is not a de Polignac number, because 345969497 - 2² = 345969493 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345969493) 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, 187313 + ... + 189150.

It is an arithmetic number, because the mean of its divisors is an integer number (86586720).

Almost surely, 2^345969497 is an apocalyptic number.

It is an amenable number.

345969497 is a deficient number, since it is larger than the sum of its proper divisors (377383).

345969497 is an equidigital number, since it uses as much as digits as its factorization.

345969497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377382.

The product of its digits is 7348320, while the sum is 56.

The square root of 345969497 is about 18600.2552939469. The cubic root of 345969497 is about 702.0142643400.

The spelling of 345969497 in words is "three hundred forty-five million, nine hundred sixty-nine thousand, four hundred ninety-seven".