398286073 has 4 divisors (see below), whose sum is σ = 403895808. Its totient is φ = 392676340.

The previous prime is 398286061. The next prime is 398286103. The reversal of 398286073 is 370682893.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-398286073 is a prime.

It is a super-2 number, since 2×398286073² = 317263591891522658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (398286023) 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, 2804761 + ... + 2804902.

It is an arithmetic number, because the mean of its divisors is an integer number (100973952).

Almost surely, 2^398286073 is an apocalyptic number.

It is an amenable number.

398286073 is a deficient number, since it is larger than the sum of its proper divisors (5609735).

398286073 is an equidigital number, since it uses as much as digits as its factorization.

398286073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5609734.

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 398286073 is about 19957.1058272486. The cubic root of 398286073 is about 735.7524329070.

The spelling of 398286073 in words is "three hundred ninety-eight million, two hundred eighty-six thousand, seventy-three".