398600069 has 16 divisors (see below), whose sum is σ = 480144000. Its totient is φ = 323253504.

The previous prime is 398600053. The next prime is 398600087. The reversal of 398600069 is 960006893.

It is not a de Polignac number, because 398600069 - 2⁴ = 398600053 is a prime.

It is a super-2 number, since 2×398600069² = 317764030013609522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 398599999 and 398600035.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398600039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138089 + ... + 140945.

It is an arithmetic number, because the mean of its divisors is an integer number (30009000).

Almost surely, 2^398600069 is an apocalyptic number.

It is an amenable number.

398600069 is a deficient number, since it is larger than the sum of its proper divisors (81543931).

398600069 is a wasteful number, since it uses less digits than its factorization.

398600069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3932.

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 398600069 is about 19964.9710493153. The cubic root of 398600069 is about 735.9457300141.

The spelling of 398600069 in words is "three hundred ninety-eight million, six hundred thousand, sixty-nine".