389603477 has 8 divisors (see below), whose sum is σ = 399859416. Its totient is φ = 379455232.

The previous prime is 389603453. The next prime is 389603497. The reversal of 389603477 is 774306983.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 156400036 + 233203441 = 12506^2 + 15271^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 389603477 - 2²² = 385409173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389603447) 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, 19568 + ... + 34089.

It is an arithmetic number, because the mean of its divisors is an integer number (49982427).

Almost surely, 2^389603477 is an apocalyptic number.

It is an amenable number.

389603477 is a deficient number, since it is larger than the sum of its proper divisors (10255939).

389603477 is a wasteful number, since it uses less digits than its factorization.

389603477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53847.

The product of its (nonzero) digits is 762048, while the sum is 47.

The square root of 389603477 is about 19738.3757437131. The cubic root of 389603477 is about 730.3666619909.

The spelling of 389603477 in words is "three hundred eighty-nine million, six hundred three thousand, four hundred seventy-seven".