607821961 has 8 divisors (see below), whose sum is σ = 647841024. Its totient is φ = 568276800.

The previous prime is 607821959. The next prime is 607821979. The reversal of 607821961 is 169128706.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 607821961 - 2¹ = 607821959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (607821901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115825 + ... + 120958.

It is an arithmetic number, because the mean of its divisors is an integer number (80980128).

Almost surely, 2^607821961 is an apocalyptic number.

It is an amenable number.

607821961 is a deficient number, since it is larger than the sum of its proper divisors (40019063).

607821961 is a wasteful number, since it uses less digits than its factorization.

607821961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236951.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 607821961 is about 24654.0455300951. The cubic root of 607821961 is about 847.0820177920.

The spelling of 607821961 in words is "six hundred seven million, eight hundred twenty-one thousand, nine hundred sixty-one".