487973146 has 4 divisors (see below), whose sum is σ = 731959722. Its totient is φ = 243986572.

The previous prime is 487973141. The next prime is 487973183. The reversal of 487973146 is 641379784.

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., 471367521 + 16605625 = 21711^2 + 4075^2 .

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 self number, because there is not a number n which added to its sum of digits gives 487973146.

It is not an unprimeable number, because it can be changed into a prime (487973141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121993285 + ... + 121993288.

Almost surely, 2^487973146 is an apocalyptic number.

487973146 is a deficient number, since it is larger than the sum of its proper divisors (243986576).

487973146 is a wasteful number, since it uses less digits than its factorization.

487973146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243986575.

The product of its digits is 1016064, while the sum is 49.

The square root of 487973146 is about 22090.1142142815. The cubic root of 487973146 is about 787.2849950037.

The spelling of 487973146 in words is "four hundred eighty-seven million, nine hundred seventy-three thousand, one hundred forty-six".