1687242058 has 8 divisors (see below), whose sum is σ = 2531132352. Its totient is φ = 843531276.

The previous prime is 1687242031. The next prime is 1687242059. The reversal of 1687242058 is 8502427861.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (1687242059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18210 + ... + 60877.

It is an arithmetic number, because the mean of its divisors is an integer number (316391544).

Almost surely, 2^1687242058 is an apocalyptic number.

1687242058 is a deficient number, since it is larger than the sum of its proper divisors (843890294).

1687242058 is a wasteful number, since it uses less digits than its factorization.

1687242058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89756.

The product of its (nonzero) digits is 215040, while the sum is 43.

The square root of 1687242058 is about 41076.0521228611. The cubic root of 1687242058 is about 1190.4901255293.

The spelling of 1687242058 in words is "one billion, six hundred eighty-seven million, two hundred forty-two thousand, fifty-eight".