9712400894 has 12 divisors (see below), whose sum is σ = 16650462264. Its totient is φ = 4162299492.

The previous prime is 9712400881. The next prime is 9712400897. The reversal of 9712400894 is 4980042179.

It is a super-2 number, since 2×9712400894² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9712400897) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 355577 + ... + 381915.

It is an arithmetic number, because the mean of its divisors is an integer number (1387538522).

Almost surely, 2^9712400894 is an apocalyptic number.

9712400894 is a deficient number, since it is larger than the sum of its proper divisors (6938061370).

9712400894 is an frugal number, since it uses more digits than its factorization.

9712400894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52687 (or 26348 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 9712400894 is about 98551.5139102388. The cubic root of 9712400894 is about 2133.5796811275.

The spelling of 9712400894 in words is "nine billion, seven hundred twelve million, four hundred thousand, eight hundred ninety-four".