398637119 has 4 divisors (see below), whose sum is σ = 419618040. Its totient is φ = 377656200.

The previous prime is 398637101. The next prime is 398637163. The reversal of 398637119 is 911736893.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 911736893 = 5099 ⋅178807.

It is a cyclic number.

It is not a de Polignac number, because 398637119 - 2¹² = 398633023 is a prime.

It is a super-2 number, since 2×398637119² = 317823105289240322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398637619) 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 3 ways as a sum of consecutive naturals, for example, 10490432 + ... + 10490469.

It is an arithmetic number, because the mean of its divisors is an integer number (104904510).

Almost surely, 2^398637119 is an apocalyptic number.

398637119 is a deficient number, since it is larger than the sum of its proper divisors (20980921).

398637119 is a wasteful number, since it uses less digits than its factorization.

398637119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20980920.

The product of its digits is 244944, while the sum is 47.

The square root of 398637119 is about 19965.8989028794. The cubic root of 398637119 is about 735.9685314355.

The spelling of 398637119 in words is "three hundred ninety-eight million, six hundred thirty-seven thousand, one hundred nineteen".