76787677 has 4 divisors (see below), whose sum is σ = 77093856. Its totient is φ = 76481500.

The previous prime is 76787663. The next prime is 76787693. The reversal of 76787677 is 77678767.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 76787677 - 2⁷ = 76787549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76787647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152713 + ... + 153214.

It is an arithmetic number, because the mean of its divisors is an integer number (19273464).

Almost surely, 2^76787677 is an apocalyptic number.

It is an amenable number.

76787677 is a deficient number, since it is larger than the sum of its proper divisors (306179).

76787677 is a wasteful number, since it uses less digits than its factorization.

76787677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306178.

The product of its digits is 4840416, while the sum is 55.

The square root of 76787677 is about 8762.8578100983. The cubic root of 76787677 is about 425.0406918362.

The spelling of 76787677 in words is "seventy-six million, seven hundred eighty-seven thousand, six hundred seventy-seven".