77304628 has 6 divisors (see below), whose sum is σ = 135283106. Its totient is φ = 38652312.

The previous prime is 77304569. The next prime is 77304631. The reversal of 77304628 is 82640377.

It can be written as a sum of positive squares in only one way, i.e., 39087504 + 38217124 = 6252^2 + 6182^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 9663075 + ... + 9663082.

Almost surely, 2^77304628 is an apocalyptic number.

It is an amenable number.

77304628 is a deficient number, since it is larger than the sum of its proper divisors (57978478).

77304628 is a wasteful number, since it uses less digits than its factorization.

77304628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19326161 (or 19326159 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 77304628 is about 8792.3050447536. The cubic root of 77304628 is about 425.9923808581.

The spelling of 77304628 in words is "seventy-seven million, three hundred four thousand, six hundred twenty-eight".