82740772 has 12 divisors (see below), whose sum is σ = 148164016. Its totient is φ = 40408200.

The previous prime is 82740761. The next prime is 82740793. The reversal of 82740772 is 27704728.

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, 240354 + ... + 240697.

Almost surely, 2^82740772 is an apocalyptic number.

It is an amenable number.

82740772 is a deficient number, since it is larger than the sum of its proper divisors (65423244).

82740772 is a wasteful number, since it uses less digits than its factorization.

82740772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481098 (or 481096 counting only the distinct ones).

The product of its (nonzero) digits is 43904, while the sum is 37.

The square root of 82740772 is about 9096.1954684362. The cubic root of 82740772 is about 435.7524687031.

The spelling of 82740772 in words is "eighty-two million, seven hundred forty thousand, seven hundred seventy-two".