787138486 has 16 divisors (see below), whose sum is σ = 1196157600. Its totient is φ = 388447488.

The previous prime is 787138477. The next prime is 787138489. The reversal of 787138486 is 684831787.

It is a super-2 number, since 2×787138486² = 1239173992284744392, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (787138489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50470 + ... + 64198.

It is an arithmetic number, because the mean of its divisors is an integer number (74759850).

Almost surely, 2^787138486 is an apocalyptic number.

787138486 is a deficient number, since it is larger than the sum of its proper divisors (409019114).

787138486 is a wasteful number, since it uses less digits than its factorization.

787138486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14103.

The product of its digits is 1806336, while the sum is 52.

The square root of 787138486 is about 28055.9884160227. The cubic root of 787138486 is about 923.3160444862.

The spelling of 787138486 in words is "seven hundred eighty-seven million, one hundred thirty-eight thousand, four hundred eighty-six".