398599653 has 4 divisors (see below), whose sum is σ = 531466208. Its totient is φ = 265733100.

The previous prime is 398599633. The next prime is 398599657. The reversal of 398599653 is 356995893.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 398599653 - 2⁶ = 398599589 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 398599593 and 398599602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398599657) 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, 66433273 + ... + 66433278.

It is an arithmetic number, because the mean of its divisors is an integer number (132866552).

Almost surely, 2^398599653 is an apocalyptic number.

It is an amenable number.

398599653 is a deficient number, since it is larger than the sum of its proper divisors (132866555).

398599653 is a wasteful number, since it uses less digits than its factorization.

398599653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132866554.

The product of its digits is 7873200, while the sum is 57.

The square root of 398599653 is about 19964.9606310656. The cubic root of 398599653 is about 735.9454739901.

The spelling of 398599653 in words is "three hundred ninety-eight million, five hundred ninety-nine thousand, six hundred fifty-three".