189453976 has 8 divisors (see below), whose sum is σ = 355226220. Its totient is φ = 94726984.

The previous prime is 189453937. The next prime is 189453991. The reversal of 189453976 is 679354981.

It is a happy number.

189453976 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11840866 + ... + 11840881.

Almost surely, 2^189453976 is an apocalyptic number.

It is an amenable number.

189453976 is a deficient number, since it is larger than the sum of its proper divisors (165772244).

189453976 is a wasteful number, since it uses less digits than its factorization.

189453976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23681753 (or 23681749 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 52.

The square root of 189453976 is about 13764.2281294666. The cubic root of 189453976 is about 574.3384714758.

The spelling of 189453976 in words is "one hundred eighty-nine million, four hundred fifty-three thousand, nine hundred seventy-six".