345660477 has 8 divisors (see below), whose sum is σ = 461086080. Its totient is φ = 230337600.

The previous prime is 345660443. The next prime is 345660487. The reversal of 345660477 is 774066543.

It is a happy number.

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

It is not a de Polignac number, because 345660477 - 2¹¹ = 345658429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345660487) 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, 17452 + ... + 31557.

It is an arithmetic number, because the mean of its divisors is an integer number (57635760).

Almost surely, 2^345660477 is an apocalyptic number.

It is an amenable number.

345660477 is a deficient number, since it is larger than the sum of its proper divisors (115425603).

345660477 is a wasteful number, since it uses less digits than its factorization.

345660477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51363.

The product of its (nonzero) digits is 423360, while the sum is 42.

The square root of 345660477 is about 18591.9465629611. The cubic root of 345660477 is about 701.8051890014.

The spelling of 345660477 in words is "three hundred forty-five million, six hundred sixty thousand, four hundred seventy-seven".