77677673 has 8 divisors (see below), whose sum is σ = 78251616. Its totient is φ = 77106400.

The previous prime is 77677609. The next prime is 77677679. The reversal of 77677673 is 37677677.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 77677673 - 2⁶ = 77677609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77677679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137690 + ... + 138252.

It is an arithmetic number, because the mean of its divisors is an integer number (9781452).

Almost surely, 2^77677673 is an apocalyptic number.

It is an amenable number.

77677673 is a deficient number, since it is larger than the sum of its proper divisors (573943).

77677673 is a wasteful number, since it uses less digits than its factorization.

77677673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1335.

The product of its digits is 1815156, while the sum is 50.

The square root of 77677673 is about 8813.4938021196. The cubic root of 77677673 is about 426.6765114780.

The spelling of 77677673 in words is "seventy-seven million, six hundred seventy-seven thousand, six hundred seventy-three".