604961491 has 4 divisors (see below), whose sum is σ = 605360232. Its totient is φ = 604562752.

The previous prime is 604961429. The next prime is 604961503. The reversal of 604961491 is 194169406.

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

It is a cyclic number.

It is not a de Polignac number, because 604961491 - 2¹⁷ = 604830419 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (604961411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197086 + ... + 200131.

It is an arithmetic number, because the mean of its divisors is an integer number (151340058).

Almost surely, 2^604961491 is an apocalyptic number.

604961491 is a deficient number, since it is larger than the sum of its proper divisors (398741).

604961491 is a wasteful number, since it uses less digits than its factorization.

604961491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398740.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 604961491 is about 24595.9649332975. The cubic root of 604961491 is about 845.7511106811.

The spelling of 604961491 in words is "six hundred four million, nine hundred sixty-one thousand, four hundred ninety-one".