487969388 has 24 divisors (see below), whose sum is σ = 882545664. Its totient is φ = 235832400.

The previous prime is 487969387. The next prime is 487969393. The reversal of 487969388 is 883969784.

It is a happy number.

It is a super-2 number, since 2×487969388² = 476228247250189088, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (62).

It is a self number, because there is not a number n which added to its sum of digits gives 487969388.

It is not an unprimeable number, because it can be changed into a prime (487969387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133481 + ... + 137087.

It is an arithmetic number, because the mean of its divisors is an integer number (36772736).

Almost surely, 2^487969388 is an apocalyptic number.

It is an amenable number.

487969388 is a deficient number, since it is larger than the sum of its proper divisors (394576276).

487969388 is a wasteful number, since it uses less digits than its factorization.

487969388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4733 (or 4731 counting only the distinct ones).

The product of its digits is 20901888, while the sum is 62.

The square root of 487969388 is about 22090.0291534439. The cubic root of 487969388 is about 787.2829739740.

The spelling of 487969388 in words is "four hundred eighty-seven million, nine hundred sixty-nine thousand, three hundred eighty-eight".