77500606 has 4 divisors (see below), whose sum is σ = 116250912. Its totient is φ = 38750302.

The previous prime is 77500597. The next prime is 77500609. The reversal of 77500606 is 60600577.

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

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 (77500609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19375150 + ... + 19375153.

It is an arithmetic number, because the mean of its divisors is an integer number (29062728).

Almost surely, 2^77500606 is an apocalyptic number.

77500606 is a deficient number, since it is larger than the sum of its proper divisors (38750306).

77500606 is a wasteful number, since it uses less digits than its factorization.

77500606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38750305.

The product of its (nonzero) digits is 8820, while the sum is 31.

The square root of 77500606 is about 8803.4428492494. The cubic root of 77500606 is about 426.3520604243.

The spelling of 77500606 in words is "seventy-seven million, five hundred thousand, six hundred six".