77674091 has 4 divisors (see below), whose sum is σ = 84735384. Its totient is φ = 70612800.

The previous prime is 77674081. The next prime is 77674123. The reversal of 77674091 is 19047677.

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 77674091 - 2⁶ = 77674027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77674001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3530630 + ... + 3530651.

It is an arithmetic number, because the mean of its divisors is an integer number (21183846).

Almost surely, 2^77674091 is an apocalyptic number.

77674091 is a deficient number, since it is larger than the sum of its proper divisors (7061293).

77674091 is a wasteful number, since it uses less digits than its factorization.

77674091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7061292.

The product of its (nonzero) digits is 74088, while the sum is 41.

The square root of 77674091 is about 8813.2905886508. The cubic root of 77674091 is about 426.6699528420.

The spelling of 77674091 in words is "seventy-seven million, six hundred seventy-four thousand, ninety-one".