491773602 has 16 divisors (see below), whose sum is σ = 983803680. Its totient is φ = 163881792.

The previous prime is 491773571. The next prime is 491773663. The reversal of 491773602 is 206377194.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21873 + ... + 38235.

It is an arithmetic number, because the mean of its divisors is an integer number (61487730).

Almost surely, 2^491773602 is an apocalyptic number.

491773602 is an abundant number, since it is smaller than the sum of its proper divisors (492030078).

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

491773602 is a wasteful number, since it uses less digits than its factorization.

491773602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21377.

The product of its (nonzero) digits is 63504, while the sum is 39.

The square root of 491773602 is about 22175.9690205411. The cubic root of 491773602 is about 789.3235688161.

The spelling of 491773602 in words is "four hundred ninety-one million, seven hundred seventy-three thousand, six hundred two".