390771471 has 8 divisors (see below), whose sum is σ = 521693824. Its totient is φ = 260181720.

The previous prime is 390771443. The next prime is 390771481. The reversal of 390771471 is 174177093.

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

It is not a de Polignac number, because 390771471 - 2⁵ = 390771439 is a prime.

It is a super-3 number, since 3×390771471³ (a number of 27 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 (390771421) 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, 80395 + ... + 85116.

It is an arithmetic number, because the mean of its divisors is an integer number (65211728).

Almost surely, 2^390771471 is an apocalyptic number.

390771471 is a deficient number, since it is larger than the sum of its proper divisors (130922353).

390771471 is a wasteful number, since it uses less digits than its factorization.

390771471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166301.

The product of its (nonzero) digits is 37044, while the sum is 39.

The square root of 390771471 is about 19767.9404845320. The cubic root of 390771471 is about 731.0957903469.

The spelling of 390771471 in words is "three hundred ninety million, seven hundred seventy-one thousand, four hundred seventy-one".