77048378 has 16 divisors (see below), whose sum is σ = 126887904. Its totient is φ = 34797360.

The previous prime is 77048359. The next prime is 77048383. The reversal of 77048378 is 87384077.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7700 + ... + 14607.

It is an arithmetic number, because the mean of its divisors is an integer number (7930494).

Almost surely, 2^77048378 is an apocalyptic number.

77048378 is a deficient number, since it is larger than the sum of its proper divisors (49839526).

77048378 is a wasteful number, since it uses less digits than its factorization.

77048378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22477.

The product of its (nonzero) digits is 263424, while the sum is 44.

The square root of 77048378 is about 8777.7205469302. The cubic root of 77048378 is about 425.5211654925.

The spelling of 77048378 in words is "seventy-seven million, forty-eight thousand, three hundred seventy-eight".