385477 has 4 divisors (see below), whose sum is σ = 387180. Its totient is φ = 383776.

The previous prime is 385471. The next prime is 385481. The reversal of 385477 is 774583.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 160801 + 224676 = 401^2 + 474^2 .

It is a cyclic number.

It is not a de Polignac number, because 385477 - 2¹¹ = 383429 is a prime.

It is a Duffinian number.

385477 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385471) 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, 448 + ... + 985.

It is an arithmetic number, because the mean of its divisors is an integer number (96795).

2³⁸⁵⁴⁷⁷ is an apocalyptic number.

It is an amenable number.

385477 is a deficient number, since it is larger than the sum of its proper divisors (1703).

385477 is a wasteful number, since it uses less digits than its factorization.

385477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1702.

The product of its digits is 23520, while the sum is 34.

The square root of 385477 is about 620.8679408699. The cubic root of 385477 is about 72.7778950115. Note that the first 3 decimals are identical.

The spelling of 385477 in words is "three hundred eighty-five thousand, four hundred seventy-seven".