189607843 has 4 divisors (see below), whose sum is σ = 192278448. Its totient is φ = 186937240.

The previous prime is 189607807. The next prime is 189607849. The reversal of 189607843 is 348706981.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 189607843 - 2²¹ = 187510691 is a prime.

It is a super-2 number, since 2×189607843² = 71902268254225298, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 189607793 and 189607802.

It is not an unprimeable number, because it can be changed into a prime (189607849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1335196 + ... + 1335337.

It is an arithmetic number, because the mean of its divisors is an integer number (48069612).

Almost surely, 2^189607843 is an apocalyptic number.

189607843 is a deficient number, since it is larger than the sum of its proper divisors (2670605).

189607843 is an equidigital number, since it uses as much as digits as its factorization.

189607843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2670604.

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 189607843 is about 13769.8163749558. The cubic root of 189607843 is about 574.4939143723.

The spelling of 189607843 in words is "one hundred eighty-nine million, six hundred seven thousand, eight hundred forty-three".