118839487 has 8 divisors (see below), whose sum is σ = 130957904. Its totient is φ = 107146368.

The previous prime is 118839467. The next prime is 118839491. The reversal of 118839487 is 784938811.

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

It is not a de Polignac number, because 118839487 - 2¹⁹ = 118315199 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 118839487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118839467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105738 + ... + 106855.

It is an arithmetic number, because the mean of its divisors is an integer number (16369738).

Almost surely, 2^118839487 is an apocalyptic number.

118839487 is a deficient number, since it is larger than the sum of its proper divisors (12118417).

118839487 is a wasteful number, since it uses less digits than its factorization.

118839487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212649.

The product of its digits is 387072, while the sum is 49.

The square root of 118839487 is about 10901.3525307642. The cubic root of 118839487 is about 491.6472218809.

The spelling of 118839487 in words is "one hundred eighteen million, eight hundred thirty-nine thousand, four hundred eighty-seven".