69674987 has 2 divisors, whose sum is σ = 69674988. Its totient is φ = 69674986.

The previous prime is 69674971. The next prime is 69675041. The reversal of 69674987 is 78947696.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 69674987 - 2⁴ = 69674971 is a prime.

It is a super-3 number, since 3×69674987³ (a number of 25 digits) contains 333 as substring.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (69674947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34837493 + 34837494.

It is an arithmetic number, because the mean of its divisors is an integer number (34837494).

Almost surely, 2^69674987 is an apocalyptic number.

69674987 is a deficient number, since it is larger than the sum of its proper divisors (1).

69674987 is an equidigital number, since it uses as much as digits as its factorization.

69674987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4572288, while the sum is 56.

The square root of 69674987 is about 8347.1544253117. The cubic root of 69674987 is about 411.4896967726.

The spelling of 69674987 in words is "sixty-nine million, six hundred seventy-four thousand, nine hundred eighty-seven".