494972961 has 12 divisors (see below), whose sum is σ = 767713392. Its totient is φ = 282841608.

The previous prime is 494972909. The next prime is 494972963. The reversal of 494972961 is 169279494.

It is a happy number.

It is not a de Polignac number, because 494972961 - 2⁹ = 494972449 is a prime.

It is a super-2 number, since 2×494972961² = 489996464242215042, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (494972963) 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, 1683435 + ... + 1683728.

It is an arithmetic number, because the mean of its divisors is an integer number (63976116).

Almost surely, 2^494972961 is an apocalyptic number.

It is an amenable number.

494972961 is a deficient number, since it is larger than the sum of its proper divisors (272740431).

494972961 is a wasteful number, since it uses less digits than its factorization.

494972961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3367180 (or 3367173 counting only the distinct ones).

The product of its digits is 979776, while the sum is 51.

The square root of 494972961 is about 22247.9877966525. The cubic root of 494972961 is about 791.0315856550.

The spelling of 494972961 in words is "four hundred ninety-four million, nine hundred seventy-two thousand, nine hundred sixty-one".