394504087 has 8 divisors (see below), whose sum is σ = 415458560. Its totient is φ = 373568760.

The previous prime is 394504079. The next prime is 394504133. The reversal of 394504087 is 780405493.

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

It is a cyclic number.

It is not a de Polignac number, because 394504087 - 2³ = 394504079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394504067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60412 + ... + 66622.

It is an arithmetic number, because the mean of its divisors is an integer number (51932320).

Almost surely, 2^394504087 is an apocalyptic number.

394504087 is a deficient number, since it is larger than the sum of its proper divisors (20954473).

394504087 is a wasteful number, since it uses less digits than its factorization.

394504087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9573.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 394504087 is about 19862.1269505559. The cubic root of 394504087 is about 733.4162061761.

The spelling of 394504087 in words is "three hundred ninety-four million, five hundred four thousand, eighty-seven".