816372 has 24 divisors (see below), whose sum is σ = 2116800. Its totient is φ = 272088.

The previous prime is 816367. The next prime is 816377. The reversal of 816372 is 273618.

It is an interprime number because it is at equal distance from previous prime (816367) and next prime (816377).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a plaindrome in base 13.

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 816372.

It is not an unprimeable number, because it can be changed into a prime (816377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3672 + ... + 3887.

It is an arithmetic number, because the mean of its divisors is an integer number (88200).

2⁸¹⁶³⁷² is an apocalyptic number.

It is an amenable number.

816372 is an abundant number, since it is smaller than the sum of its proper divisors (1300428).

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

816372 is a wasteful number, since it uses less digits than its factorization.

816372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7572 (or 7564 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 816372 is about 903.5330652500. The cubic root of 816372 is about 93.4607726245.

The spelling of 816372 in words is "eight hundred sixteen thousand, three hundred seventy-two".