891214734 has 16 divisors (see below), whose sum is σ = 1791388800. Its totient is φ = 295578360.

The previous prime is 891214711. The next prime is 891214759. The reversal of 891214734 is 437412198.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 891214692 and 891214701.

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, 372012 + ... + 374399.

It is an arithmetic number, because the mean of its divisors is an integer number (111961800).

Almost surely, 2^891214734 is an apocalyptic number.

891214734 is an abundant number, since it is smaller than the sum of its proper divisors (900174066).

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

891214734 is a wasteful number, since it uses less digits than its factorization.

891214734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746615.

The product of its digits is 48384, while the sum is 39.

The square root of 891214734 is about 29853.2198263437. The cubic root of 891214734 is about 962.3375954468.

The spelling of 891214734 in words is "eight hundred ninety-one million, two hundred fourteen thousand, seven hundred thirty-four".