398061773 has 8 divisors (see below), whose sum is σ = 403884600. Its totient is φ = 392249088.

The previous prime is 398061757. The next prime is 398061863. The reversal of 398061773 is 377160893.

It can be written as a sum of positive squares in 4 ways, for example, as 299913124 + 98148649 = 17318^2 + 9907^2 .

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 398061773 - 2⁴ = 398061757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398061733) 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, 115763 + ... + 119151.

It is an arithmetic number, because the mean of its divisors is an integer number (50485575).

Almost surely, 2^398061773 is an apocalyptic number.

It is an amenable number.

398061773 is a deficient number, since it is larger than the sum of its proper divisors (5822827).

398061773 is a wasteful number, since it uses less digits than its factorization.

398061773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5071.

The product of its (nonzero) digits is 190512, while the sum is 44.

The square root of 398061773 is about 19951.4854835423. The cubic root of 398061773 is about 735.6142907767.

The spelling of 398061773 in words is "three hundred ninety-eight million, sixty-one thousand, seven hundred seventy-three".