394467061 has 2 divisors, whose sum is σ = 394467062. Its totient is φ = 394467060.

The previous prime is 394467049. The next prime is 394467071. The reversal of 394467061 is 160764493.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 284091025 + 110376036 = 16855^2 + 10506^2 .

It is an emirp because it is prime and its reverse (160764493) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 394467061 - 2¹¹ = 394465013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (394467011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197233530 + 197233531.

It is an arithmetic number, because the mean of its divisors is an integer number (197233531).

Almost surely, 2^394467061 is an apocalyptic number.

It is an amenable number.

394467061 is a deficient number, since it is larger than the sum of its proper divisors (1).

394467061 is an equidigital number, since it uses as much as digits as its factorization.

394467061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 394467061 is about 19861.1948532811. The cubic root of 394467061 is about 733.3932606444.

The spelling of 394467061 in words is "three hundred ninety-four million, four hundred sixty-seven thousand, sixty-one".