187996741 has 16 divisors (see below), whose sum is σ = 200406528. Its totient is φ = 176040000.

The previous prime is 187996723. The next prime is 187996751. The reversal of 187996741 is 147699781.

It is a cyclic number.

It is not a de Polignac number, because 187996741 - 2⁵ = 187996709 is a prime.

It is a Duffinian number.

Its product of digits (762048) is a multiple of the sum of its prime divisors (972).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (187996751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 287571 + ... + 288223.

It is an arithmetic number, because the mean of its divisors is an integer number (12525408).

Almost surely, 2^187996741 is an apocalyptic number.

It is an amenable number.

187996741 is a deficient number, since it is larger than the sum of its proper divisors (12409787).

187996741 is a wasteful number, since it uses less digits than its factorization.

187996741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972.

The product of its digits is 762048, while the sum is 52.

The square root of 187996741 is about 13711.1903567852. The cubic root of 187996741 is about 572.8621213514.

The spelling of 187996741 in words is "one hundred eighty-seven million, nine hundred ninety-six thousand, seven hundred forty-one".