669832951 has 2 divisors, whose sum is σ = 669832952. Its totient is φ = 669832950.

The previous prime is 669832939. The next prime is 669833023. The reversal of 669832951 is 159238966.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 669832951 - 2¹⁹ = 669308663 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 669832895 and 669832904.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (669832901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 334916475 + 334916476.

It is an arithmetic number, because the mean of its divisors is an integer number (334916476).

Almost surely, 2^669832951 is an apocalyptic number.

669832951 is a deficient number, since it is larger than the sum of its proper divisors (1).

669832951 is an equidigital number, since it uses as much as digits as its factorization.

669832951 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 699840, while the sum is 49.

The square root of 669832951 is about 25881.1311769791. The cubic root of 669832951 is about 874.9612830760.

The spelling of 669832951 in words is "six hundred sixty-nine million, eight hundred thirty-two thousand, nine hundred fifty-one".