999670951 has 2 divisors, whose sum is σ = 999670952. Its totient is φ = 999670950.

The previous prime is 999670943. The next prime is 999670957. The reversal of 999670951 is 159076999.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 999670951 - 2³ = 999670943 is a prime.

It is a super-3 number, since 3×999670951³ (a number of 28 digits) contains 333 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 999670892 and 999670901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999670957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499835475 + 499835476.

It is an arithmetic number, because the mean of its divisors is an integer number (499835476).

Almost surely, 2^999670951 is an apocalyptic number.

999670951 is a deficient number, since it is larger than the sum of its proper divisors (1).

999670951 is an equidigital number, since it uses as much as digits as its factorization.

999670951 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1377810, while the sum is 55.

The square root of 999670951 is about 31617.5734521168. The cubic root of 999670951 is about 999.8903049674.

The spelling of 999670951 in words is "nine hundred ninety-nine million, six hundred seventy thousand, nine hundred fifty-one".