82487992 has 8 divisors (see below), whose sum is σ = 154665000. Its totient is φ = 41243992.

The previous prime is 82487969. The next prime is 82488011. The reversal of 82487992 is 29978428.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5155492 + ... + 5155507.

It is an arithmetic number, because the mean of its divisors is an integer number (19333125).

Almost surely, 2^82487992 is an apocalyptic number.

It is an amenable number.

82487992 is a deficient number, since it is larger than the sum of its proper divisors (72177008).

82487992 is a wasteful number, since it uses less digits than its factorization.

82487992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10311005 (or 10311001 counting only the distinct ones).

The product of its digits is 580608, while the sum is 49.

The square root of 82487992 is about 9082.2900195931. The cubic root of 82487992 is about 435.3082625834.

The spelling of 82487992 in words is "eighty-two million, four hundred eighty-seven thousand, nine hundred ninety-two".