82203919 has 6 divisors (see below), whose sum is σ = 95625024. Its totient is φ = 70460460.

The previous prime is 82203883. The next prime is 82203923. The reversal of 82203919 is 91930228.

It is not a de Polignac number, because 82203919 - 2¹⁷ = 82072847 is a prime.

It is a super-2 number, since 2×82203919² = 13514968597917122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82203929) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 838767 + ... + 838864.

It is an arithmetic number, because the mean of its divisors is an integer number (15937504).

Almost surely, 2^82203919 is an apocalyptic number.

82203919 is a deficient number, since it is larger than the sum of its proper divisors (13421105).

82203919 is a wasteful number, since it uses less digits than its factorization.

82203919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1677645 (or 1677638 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 82203919 is about 9066.6376899047. The cubic root of 82203919 is about 434.8079814864.

It can be divided in two parts, 82203 and 919, that multiplied together give a palindrome (75544557).

The spelling of 82203919 in words is "eighty-two million, two hundred three thousand, nine hundred nineteen".