82723380 has 48 divisors (see below), whose sum is σ = 232170624. Its totient is φ = 22007680.

The previous prime is 82723373. The next prime is 82723393. The reversal of 82723380 is 8332728.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28810 + ... + 31550.

It is an arithmetic number, because the mean of its divisors is an integer number (4836888).

Almost surely, 2^82723380 is an apocalyptic number.

It is an amenable number.

82723380 is an abundant number, since it is smaller than the sum of its proper divisors (149447244).

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

82723380 is a wasteful number, since it uses less digits than its factorization.

82723380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3256 (or 3254 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 82723380 is about 9095.2394141111. The cubic root of 82723380 is about 435.7219350342.

The spelling of 82723380 in words is "eighty-two million, seven hundred twenty-three thousand, three hundred eighty".