77049087 has 4 divisors (see below), whose sum is σ = 102732120. Its totient is φ = 51366056.

The previous prime is 77049073. The next prime is 77049107. The reversal of 77049087 is 78094077.

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

It is a cyclic number.

It is not a de Polignac number, because 77049087 - 2¹¹ = 77047039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77049017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12841512 + ... + 12841517.

It is an arithmetic number, because the mean of its divisors is an integer number (25683030).

Almost surely, 2^77049087 is an apocalyptic number.

77049087 is a deficient number, since it is larger than the sum of its proper divisors (25683033).

77049087 is a wasteful number, since it uses less digits than its factorization.

77049087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25683032.

The product of its (nonzero) digits is 98784, while the sum is 42.

The square root of 77049087 is about 8777.7609331765. The cubic root of 77049087 is about 425.5224707053.

The spelling of 77049087 in words is "seventy-seven million, forty-nine thousand, eighty-seven".