838722 has 8 divisors (see below), whose sum is σ = 1677456. Its totient is φ = 279572.

The previous prime is 838711. The next prime is 838751. The reversal of 838722 is 227838.

838722 is an esthetic number in base 12, because in such base its adjacent digits differ by 1.

It is a sphenic number, since it is the product of 3 distinct primes.

838722 is an admirable number.

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 838722.

It is an unprimeable number.

838722 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 3 ways as a sum of consecutive naturals, for example, 69888 + ... + 69899.

It is an arithmetic number, because the mean of its divisors is an integer number (209682).

2⁸³⁸⁷²² is an apocalyptic number.

838722 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

838722 is a wasteful number, since it uses less digits than its factorization.

838722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139792.

The product of its digits is 5376, while the sum is 30.

The square root of 838722 is about 915.8176674426. The cubic root of 838722 is about 94.3060044225.

The spelling of 838722 in words is "eight hundred thirty-eight thousand, seven hundred twenty-two".