1887749098 has 4 divisors (see below), whose sum is σ = 2831623650. Its totient is φ = 943874548.

The previous prime is 1887749089. The next prime is 1887749111. The reversal of 1887749098 is 8909477881.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1278992169 + 608756929 = 35763^2 + 24673^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 471937273 + ... + 471937276.

Almost surely, 2^1887749098 is an apocalyptic number.

1887749098 is a deficient number, since it is larger than the sum of its proper divisors (943874552).

1887749098 is an equidigital number, since it uses as much as digits as its factorization.

1887749098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943874551.

The product of its (nonzero) digits is 8128512, while the sum is 61.

The square root of 1887749098 is about 43448.2346937134. The cubic root of 1887749098 is about 1235.8945690731.

The spelling of 1887749098 in words is "one billion, eight hundred eighty-seven million, seven hundred forty-nine thousand, ninety-eight".