491467954 has 4 divisors (see below), whose sum is σ = 737201934. Its totient is φ = 245733976.

The previous prime is 491467937. The next prime is 491467957. The reversal of 491467954 is 459764194.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 482900625 + 8567329 = 21975^2 + 2927^2 .

It is a super-2 number, since 2×491467954² = 483081499617892232, which contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 491467898 and 491467907.

It is not an unprimeable number, because it can be changed into a prime (491467957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122866987 + ... + 122866990.

Almost surely, 2^491467954 is an apocalyptic number.

491467954 is a deficient number, since it is larger than the sum of its proper divisors (245733980).

491467954 is a wasteful number, since it uses less digits than its factorization.

491467954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245733979.

The product of its digits is 1088640, while the sum is 49.

The square root of 491467954 is about 22169.0765256472. The cubic root of 491467954 is about 789.1600076650.

The spelling of 491467954 in words is "four hundred ninety-one million, four hundred sixty-seven thousand, nine hundred fifty-four".