4274989 has 2 divisors, whose sum is σ = 4274990. Its totient is φ = 4274988.

The previous prime is 4274983. The next prime is 4274999. The reversal of 4274989 is 9894724.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4272489 + 2500 = 2067^2 + 50^2 .

It is a cyclic number.

It is not a de Polignac number, because 4274989 - 2⁵ = 4274957 is a prime.

It is a d-powerful number, because it can be written as 4 + 2²¹ + 7⁵ + 4⁶ + 9³ + 8⁷ + 9⁵ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4274983) 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 as a sum of consecutive naturals, namely, 2137494 + 2137495.

It is an arithmetic number, because the mean of its divisors is an integer number (2137495).

Almost surely, 2^4274989 is an apocalyptic number.

It is an amenable number.

4274989 is a deficient number, since it is larger than the sum of its proper divisors (1).

4274989 is an equidigital number, since it uses as much as digits as its factorization.

4274989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 43.

The square root of 4274989 is about 2067.6046527322. The cubic root of 4274989 is about 162.2974391258.

It can be divided in two parts, 42749 and 89, that multiplied together give a triangular number (3804661 = T₂₇₅₈).

The spelling of 4274989 in words is "four million, two hundred seventy-four thousand, nine hundred eighty-nine".