1687220074 has 8 divisors (see below), whose sum is σ = 2612469888. Its totient is φ = 816396780.

The previous prime is 1687220057. The next prime is 1687220141. The reversal of 1687220074 is 4700227861.

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

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, 13606552 + ... + 13606675.

It is an arithmetic number, because the mean of its divisors is an integer number (326558736).

Almost surely, 2^1687220074 is an apocalyptic number.

1687220074 is a deficient number, since it is larger than the sum of its proper divisors (925249814).

1687220074 is a wasteful number, since it uses less digits than its factorization.

1687220074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27213260.

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 1687220074 is about 41075.7845208098. The cubic root of 1687220074 is about 1190.4849549911.

The spelling of 1687220074 in words is "one billion, six hundred eighty-seven million, two hundred twenty thousand, seventy-four".