82369720 has 16 divisors (see below), whose sum is σ = 185331960. Its totient is φ = 32947872.

The previous prime is 82369699. The next prime is 82369741. The reversal of 82369720 is 2796328.

It is an interprime number because it is at equal distance from previous prime (82369699) and next prime (82369741).

It is a self number, because there is not a number n which added to its sum of digits gives 82369720.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1029582 + ... + 1029661.

Almost surely, 2^82369720 is an apocalyptic number.

It is an amenable number.

82369720 is an abundant number, since it is smaller than the sum of its proper divisors (102962240).

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

82369720 is a wasteful number, since it uses less digits than its factorization.

82369720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2059254 (or 2059250 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 82369720 is about 9075.7765507972. The cubic root of 82369720 is about 435.1001134793.

It can be divided in two parts, 8236 and 9720, that added together give a square (17956 = 134²).

The spelling of 82369720 in words is "eighty-two million, three hundred sixty-nine thousand, seven hundred twenty".