891915342 has 16 divisors (see below), whose sum is σ = 1784788992. Its totient is φ = 297145400.

The previous prime is 891915337. The next prime is 891915359. The reversal of 891915342 is 243519198.

It is a junction number, because it is equal to n+sod(n) for n = 891915294 and 891915303.

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, 27534 + ... + 50417.

It is an arithmetic number, because the mean of its divisors is an integer number (111549312).

Almost surely, 2^891915342 is an apocalyptic number.

891915342 is an abundant number, since it is smaller than the sum of its proper divisors (892873650).

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

891915342 is a wasteful number, since it uses less digits than its factorization.

891915342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79863.

The product of its digits is 77760, while the sum is 42.

The square root of 891915342 is about 29864.9517327586. The cubic root of 891915342 is about 962.5897025971.

The spelling of 891915342 in words is "eight hundred ninety-one million, nine hundred fifteen thousand, three hundred forty-two".