6390471 has 8 divisors (see below), whose sum is σ = 8577664. Its totient is φ = 4231800.

The previous prime is 6390463. The next prime is 6390499. The reversal of 6390471 is 1740936.

It is a happy number.

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

It is not a de Polignac number, because 6390471 - 2³ = 6390463 is a prime.

It is a super-3 number, since 3×6390471³ (a number of 21 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6390401) 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, 6601 + ... + 7506.

It is an arithmetic number, because the mean of its divisors is an integer number (1072208).

Almost surely, 2^6390471 is an apocalyptic number.

6390471 is a deficient number, since it is larger than the sum of its proper divisors (2187193).

6390471 is a wasteful number, since it uses less digits than its factorization.

6390471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14261.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 6390471 is about 2527.9380925964. The cubic root of 6390471 is about 185.5713623665.

The spelling of 6390471 in words is "six million, three hundred ninety thousand, four hundred seventy-one".