77308006 has 4 divisors (see below), whose sum is σ = 115962012. Its totient is φ = 38654002.

The previous prime is 77308003. The next prime is 77308009. The reversal of 77308006 is 60080377.

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

It is an interprime number because it is at equal distance from previous prime (77308003) and next prime (77308009).

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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77308003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19327000 + ... + 19327003.

It is an arithmetic number, because the mean of its divisors is an integer number (28990503).

Almost surely, 2^77308006 is an apocalyptic number.

77308006 is a deficient number, since it is larger than the sum of its proper divisors (38654006).

77308006 is a wasteful number, since it uses less digits than its factorization.

77308006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38654005.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 77308006 is about 8792.4971424505. The cubic root of 77308006 is about 425.9985856669.

The spelling of 77308006 in words is "seventy-seven million, three hundred eight thousand, six".