189437854 has 16 divisors (see below), whose sum is σ = 293115888. Its totient is φ = 91755072.

The previous prime is 189437837. The next prime is 189437863. The reversal of 189437854 is 458734981.

It is a junction number, because it is equal to n+sod(n) for n = 189437798 and 189437807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11749 + ... + 22735.

It is an arithmetic number, because the mean of its divisors is an integer number (18319743).

Almost surely, 2^189437854 is an apocalyptic number.

189437854 is a deficient number, since it is larger than the sum of its proper divisors (103678034).

189437854 is a wasteful number, since it uses less digits than its factorization.

189437854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11259.

The product of its digits is 967680, while the sum is 49.

The square root of 189437854 is about 13763.6424684747. The cubic root of 189437854 is about 574.3221794846.

The spelling of 189437854 in words is "one hundred eighty-nine million, four hundred thirty-seven thousand, eight hundred fifty-four".