11971494 has 24 divisors (see below), whose sum is σ = 26365872. Its totient is φ = 3924720.

The previous prime is 11971469. The next prime is 11971499. The reversal of 11971494 is 49417911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11971499) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4354 + ... + 6549.

It is an arithmetic number, because the mean of its divisors is an integer number (1098578).

Almost surely, 2^11971494 is an apocalyptic number.

11971494 is an abundant number, since it is smaller than the sum of its proper divisors (14394378).

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

11971494 is a wasteful number, since it uses less digits than its factorization.

11971494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10972 (or 10969 counting only the distinct ones).

The product of its digits is 9072, while the sum is 36.

The square root of 11971494 is about 3459.9846820470. The cubic root of 11971494 is about 228.7614201949.

The spelling of 11971494 in words is "eleven million, nine hundred seventy-one thousand, four hundred ninety-four".