390547 has 4 divisors (see below), whose sum is σ = 394240. Its totient is φ = 386856.

The previous prime is 390539. The next prime is 390553. The reversal of 390547 is 745093.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 390547 - 2³ = 390539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (390527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1683 + ... + 1900.

It is an arithmetic number, because the mean of its divisors is an integer number (98560).

2³⁹⁰⁵⁴⁷ is an apocalyptic number.

390547 is a deficient number, since it is larger than the sum of its proper divisors (3693).

390547 is a wasteful number, since it uses less digits than its factorization.

390547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3692.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 390547 is about 624.9375968847. The cubic root of 390547 is about 73.0955775659.

The spelling of 390547 in words is "three hundred ninety thousand, five hundred forty-seven".