891246994 has 16 divisors (see below), whose sum is σ = 1489435776. Its totient is φ = 396492400.

The previous prime is 891246991. The next prime is 891247001. The reversal of 891246994 is 499642198.

It is a super-3 number, since 3×891246994³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (891246991) 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, 429937 + ... + 432004.

It is an arithmetic number, because the mean of its divisors is an integer number (93089736).

Almost surely, 2^891246994 is an apocalyptic number.

891246994 is a deficient number, since it is larger than the sum of its proper divisors (598188782).

891246994 is a wasteful number, since it uses less digits than its factorization.

891246994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862001.

The product of its digits is 1119744, while the sum is 52.

The square root of 891246994 is about 29853.7601316819. The cubic root of 891246994 is about 962.3492068034.

The spelling of 891246994 in words is "eight hundred ninety-one million, two hundred forty-six thousand, nine hundred ninety-four".