77076645 has 8 divisors (see below), whose sum is σ = 123322656. Its totient is φ = 41107536.

The previous prime is 77076641. The next prime is 77076667. The reversal of 77076645 is 54667077.

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

It is not a de Polignac number, because 77076645 - 2² = 77076641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 77076597 and 77076606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77076641) 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, 2569207 + ... + 2569236.

It is an arithmetic number, because the mean of its divisors is an integer number (15415332).

Almost surely, 2^77076645 is an apocalyptic number.

It is an amenable number.

77076645 is a deficient number, since it is larger than the sum of its proper divisors (46246011).

77076645 is a wasteful number, since it uses less digits than its factorization.

77076645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5138451.

The product of its (nonzero) digits is 246960, while the sum is 42.

The square root of 77076645 is about 8779.3305553442. The cubic root of 77076645 is about 425.5731965950.

The spelling of 77076645 in words is "seventy-seven million, seventy-six thousand, six hundred forty-five".