345477 has 24 divisors (see below), whose sum is σ = 548640. Its totient is φ = 191520.

The previous prime is 345473. The next prime is 345479. The reversal of 345477 is 774543.

It is not a de Polignac number, because 345477 - 2² = 345473 is a prime.

It is an Ulam number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 345477.

It is not an unprimeable number, because it can be changed into a prime (345473) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11899 + ... + 11927.

It is an arithmetic number, because the mean of its divisors is an integer number (22860).

2³⁴⁵⁴⁷⁷ is an apocalyptic number.

It is an amenable number.

345477 is a deficient number, since it is larger than the sum of its proper divisors (203163).

345477 is a wasteful number, since it uses less digits than its factorization.

345477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81 (or 62 counting only the distinct ones).

The product of its digits is 11760, while the sum is 30.

The square root of 345477 is about 587.7729153338. The cubic root of 345477 is about 70.1680994010.

The spelling of 345477 in words is "three hundred forty-five thousand, four hundred seventy-seven".