76780486 has 8 divisors (see below), whose sum is σ = 120178224. Its totient is φ = 36721080.

The previous prime is 76780481. The next prime is 76780519. The reversal of 76780486 is 68408767.

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

It is a Harshad number since it is a multiple of its sum of digits (46), and also a Moran number because the ratio is a prime number: 1669141 = 76780486 / (7 + 6 + 7 + 8 + 0 + 4 + 8 + 6).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76780481) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 834525 + ... + 834616.

It is an arithmetic number, because the mean of its divisors is an integer number (15022278).

Almost surely, 2^76780486 is an apocalyptic number.

76780486 is a deficient number, since it is larger than the sum of its proper divisors (43397738).

76780486 is a wasteful number, since it uses less digits than its factorization.

76780486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1669166.

The product of its (nonzero) digits is 451584, while the sum is 46.

The square root of 76780486 is about 8762.4474891437. The cubic root of 76780486 is about 425.0274233746.

The spelling of 76780486 in words is "seventy-six million, seven hundred eighty thousand, four hundred eighty-six".