1698132427 has 8 divisors (see below), whose sum is σ = 1744615872. Its totient is φ = 1651680000.

The previous prime is 1698132311. The next prime is 1698132451. The reversal of 1698132427 is 7242318961.

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

It is not a de Polignac number, because 1698132427 - 2¹⁵ = 1698099659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1698132127) 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, 142302 + ... + 153772.

It is an arithmetic number, because the mean of its divisors is an integer number (218076984).

Almost surely, 2^1698132427 is an apocalyptic number.

1698132427 is a deficient number, since it is larger than the sum of its proper divisors (46483445).

1698132427 is a wasteful number, since it uses less digits than its factorization.

1698132427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15509.

The product of its digits is 145152, while the sum is 43.

The square root of 1698132427 is about 41208.4023834946. The cubic root of 1698132427 is about 1193.0459892425.

The spelling of 1698132427 in words is "one billion, six hundred ninety-eight million, one hundred thirty-two thousand, four hundred twenty-seven".