189649037 has 8 divisors (see below), whose sum is σ = 190935360. Its totient is φ = 188367520.

The previous prime is 189649021. The next prime is 189649039. The reversal of 189649037 is 730946981.

189649037 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 189649037 - 2⁴ = 189649021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 189648982 and 189649000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189649039) 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, 109337 + ... + 111057.

It is an arithmetic number, because the mean of its divisors is an integer number (23866920).

Almost surely, 2^189649037 is an apocalyptic number.

It is an amenable number.

189649037 is a deficient number, since it is larger than the sum of its proper divisors (1286323).

189649037 is a wasteful number, since it uses less digits than its factorization.

189649037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2403.

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 189649037 is about 13771.3121016118. The cubic root of 189649037 is about 574.5355160070.

The spelling of 189649037 in words is "one hundred eighty-nine million, six hundred forty-nine thousand, thirty-seven".