901398 has 16 divisors (see below), whose sum is σ = 1897920. Its totient is φ = 284616.

The previous prime is 901367. The next prime is 901399. The reversal of 901398 is 893109.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 901398.

It is not an unprimeable number, because it can be changed into a prime (901399) by changing a digit.

901398 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3840 + ... + 4067.

It is an arithmetic number, because the mean of its divisors is an integer number (118620).

2⁹⁰¹³⁹⁸ is an apocalyptic number.

901398 is an abundant number, since it is smaller than the sum of its proper divisors (996522).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

901398 is a wasteful number, since it uses less digits than its factorization.

901398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7931.

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 901398 is about 949.4198228392. The cubic root of 901398 is about 96.5989034935.

The spelling of 901398 in words is "nine hundred one thousand, three hundred ninety-eight".