891230745 has 8 divisors (see below), whose sum is σ = 1425969216. Its totient is φ = 475323056.

The previous prime is 891230741. The next prime is 891230759. The reversal of 891230745 is 547032198.

891230745 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 891230745 - 2² = 891230741 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (891230741) 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, 29707677 + ... + 29707706.

It is an arithmetic number, because the mean of its divisors is an integer number (178246152).

Almost surely, 2^891230745 is an apocalyptic number.

It is an amenable number.

891230745 is a deficient number, since it is larger than the sum of its proper divisors (534738471).

891230745 is a wasteful number, since it uses less digits than its factorization.

891230745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59415391.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 891230745 is about 29853.4879871683. The cubic root of 891230745 is about 962.3433583284.

The spelling of 891230745 in words is "eight hundred ninety-one million, two hundred thirty thousand, seven hundred forty-five".