390471 has 8 divisors (see below), whose sum is σ = 543360. Its totient is φ = 248952.

The previous prime is 390463. The next prime is 390479. The reversal of 390471 is 174093.

It is an interprime number because it is at equal distance from previous prime (390463) and next prime (390479).

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

It is not a de Polignac number, because 390471 - 2³ = 390463 is a prime.

It is a super-3 number, since 3×390471³ = 178602530875371333, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390479) 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, 2761 + ... + 2898.

It is an arithmetic number, because the mean of its divisors is an integer number (67920).

2³⁹⁰⁴⁷¹ is an apocalyptic number.

390471 is a deficient number, since it is larger than the sum of its proper divisors (152889).

390471 is a wasteful number, since it uses less digits than its factorization.

390471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5685.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 390471 is about 624.8767878550. The cubic root of 390471 is about 73.0908358197.

It can be divided in two parts, 390 and 471, that added together give a triangular number (861 = T₄₁).

The spelling of 390471 in words is "three hundred ninety thousand, four hundred seventy-one".