186996427 has 8 divisors (see below), whose sum is σ = 190116864. Its totient is φ = 183896808.

The previous prime is 186996401. The next prime is 186996431. The reversal of 186996427 is 724699681.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 186996427 - 2²⁷ = 52778699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (186966427) 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, 13458 + ... + 23560.

It is an arithmetic number, because the mean of its divisors is an integer number (23764608).

Almost surely, 2^186996427 is an apocalyptic number.

186996427 is a deficient number, since it is larger than the sum of its proper divisors (3120437).

186996427 is a wasteful number, since it uses less digits than its factorization.

186996427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10409.

The product of its digits is 1306368, while the sum is 52.

The square root of 186996427 is about 13674.6636887347. The cubic root of 186996427 is about 571.8442643738.

The spelling of 186996427 in words is "one hundred eighty-six million, nine hundred ninety-six thousand, four hundred twenty-seven".