77070082 has 4 divisors (see below), whose sum is σ = 115605126. Its totient is φ = 38535040.

The previous prime is 77070073. The next prime is 77070157. The reversal of 77070082 is 28007077.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 75325041 + 1745041 = 8679^2 + 1321^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19267519 + ... + 19267522.

Almost surely, 2^77070082 is an apocalyptic number.

77070082 is a deficient number, since it is larger than the sum of its proper divisors (38535044).

77070082 is a wasteful number, since it uses less digits than its factorization.

77070082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38535043.

The product of its (nonzero) digits is 5488, while the sum is 31.

The square root of 77070082 is about 8778.9567717355. The cubic root of 77070082 is about 425.5611172067.

The spelling of 77070082 in words is "seventy-seven million, seventy thousand, eighty-two".