77028127 has 8 divisors (see below), whose sum is σ = 87684480. Its totient is φ = 66980760.

The previous prime is 77028079. The next prime is 77028143. The reversal of 77028127 is 72182077.

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

It is not a de Polignac number, because 77028127 - 2⁷ = 77027999 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 77028092 and 77028101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77028827) 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, 151977 + ... + 152482.

It is an arithmetic number, because the mean of its divisors is an integer number (10960560).

Almost surely, 2^77028127 is an apocalyptic number.

77028127 is a deficient number, since it is larger than the sum of its proper divisors (10656353).

77028127 is a wasteful number, since it uses less digits than its factorization.

77028127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304493.

The product of its (nonzero) digits is 10976, while the sum is 34.

The square root of 77028127 is about 8776.5669256264. The cubic root of 77028127 is about 425.4838816265.

The spelling of 77028127 in words is "seventy-seven million, twenty-eight thousand, one hundred twenty-seven".