345776 has 10 divisors (see below), whose sum is σ = 669972. Its totient is φ = 172880.
The previous prime is 345773. The next prime is 345791. The reversal of 345776 is 677543.
It is a super-2 number, since 2×3457762 = 239122084352, which contains 22 as substring.
It is a d-powerful number, because it can be written as 35 + 48 + 7 + 5 + 72 + 67 .
It is not an unprimeable number, because it can be changed into a prime (345773) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10790 + ... + 10821.
2345776 is an apocalyptic number.
It is an amenable number.
345776 is a deficient number, since it is larger than the sum of its proper divisors (324196).
345776 is a wasteful number, since it uses less digits than its factorization.
345776 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 21619 (or 21613 counting only the distinct ones).
The product of its digits is 17640, while the sum is 32.
The square root of 345776 is about 588.0272102548. The cubic root of 345776 is about 70.1883363603.
Subtracting from 345776 its sum of digits (32), we obtain a square (345744 = 5882).
The spelling of 345776 in words is "three hundred forty-five thousand, seven hundred seventy-six".
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