77476228 has 24 divisors (see below), whose sum is σ = 137729592. Its totient is φ = 38129664.

The previous prime is 77476211. The next prime is 77476229. The reversal of 77476228 is 82267477.

It can be written as a sum of positive squares in 4 ways, for example, as 15507844 + 61968384 = 3938^2 + 7872^2 .

It is not an unprimeable number, because it can be changed into a prime (77476229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89976 + ... + 90832.

It is an arithmetic number, because the mean of its divisors is an integer number (5738733).

Almost surely, 2^77476228 is an apocalyptic number.

It is an amenable number.

77476228 is a deficient number, since it is larger than the sum of its proper divisors (60253364).

77476228 is a wasteful number, since it uses less digits than its factorization.

77476228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1191 (or 1189 counting only the distinct ones).

The product of its digits is 263424, while the sum is 43.

The square root of 77476228 is about 8802.0581684058. The cubic root of 77476228 is about 426.3073523847.

The spelling of 77476228 in words is "seventy-seven million, four hundred seventy-six thousand, two hundred twenty-eight".