389470 has 32 divisors (see below), whose sum is σ = 777600. Its totient is φ = 139776.

The previous prime is 389461. The next prime is 389479. The reversal of 389470 is 74983.

It is a happy number.

389470 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (389461) and next prime (389479).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389479) by changing a digit.

389470 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4891 + ... + 4969.

It is an arithmetic number, because the mean of its divisors is an integer number (24300).

2³⁸⁹⁴⁷⁰ is an apocalyptic number.

389470 is the 395-th heptagonal number.

389470 is a deficient number, since it is larger than the sum of its proper divisors (388130).

389470 is a wasteful number, since it uses less digits than its factorization.

389470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 389470 is about 624.0753159676. The cubic root of 389470 is about 73.0283245311.

The spelling of 389470 in words is "three hundred eighty-nine thousand, four hundred seventy".