189653892 has 12 divisors (see below), whose sum is σ = 442525776. Its totient is φ = 63217960.

The previous prime is 189653873. The next prime is 189653911. The reversal of 189653892 is 298356981.

It is a happy number.

189653892 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (189653873) and next prime (189653911).

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7902234 + ... + 7902257.

It is an arithmetic number, because the mean of its divisors is an integer number (36877148).

Almost surely, 2^189653892 is an apocalyptic number.

189653892 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

189653892 is an abundant number, since it is smaller than the sum of its proper divisors (252871884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

189653892 is a wasteful number, since it uses less digits than its factorization.

189653892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15804498 (or 15804496 counting only the distinct ones).

The product of its digits is 933120, while the sum is 51.

The square root of 189653892 is about 13771.4883727214. The cubic root of 189653892 is about 574.5404186527.

The spelling of 189653892 in words is "one hundred eighty-nine million, six hundred fifty-three thousand, eight hundred ninety-two".