787427138 has 8 divisors (see below), whose sum is σ = 1181556288. Its totient is φ = 393575044.

The previous prime is 787427107. The next prime is 787427141. The reversal of 787427138 is 831724787.

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

It is a junction number, because it is equal to n+sod(n) for n = 787427092 and 787427101.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62006 + ... + 73617.

It is an arithmetic number, because the mean of its divisors is an integer number (147694536).

Almost surely, 2^787427138 is an apocalyptic number.

787427138 is a deficient number, since it is larger than the sum of its proper divisors (394129150).

787427138 is a wasteful number, since it uses less digits than its factorization.

787427138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138528.

The product of its digits is 526848, while the sum is 47.

The square root of 787427138 is about 28061.1321582006. The cubic root of 787427138 is about 923.4288939429.

The spelling of 787427138 in words is "seven hundred eighty-seven million, four hundred twenty-seven thousand, one hundred thirty-eight".