82758990 has 16 divisors (see below), whose sum is σ = 198621648. Its totient is φ = 22069056.

The previous prime is 82758989. The next prime is 82759049. The reversal of 82758990 is 9985728.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1379287 + ... + 1379346.

It is an arithmetic number, because the mean of its divisors is an integer number (12413853).

Almost surely, 2^82758990 is an apocalyptic number.

82758990 is an abundant number, since it is smaller than the sum of its proper divisors (115862658).

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

82758990 is a wasteful number, since it uses less digits than its factorization.

82758990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2758643.

The product of its (nonzero) digits is 362880, while the sum is 48.

The square root of 82758990 is about 9097.1968209993. The cubic root of 82758990 is about 435.7844479225.

The spelling of 82758990 in words is "eighty-two million, seven hundred fifty-eight thousand, nine hundred ninety".