84458749 has 2 divisors, whose sum is σ = 84458750. Its totient is φ = 84458748.

The previous prime is 84458711. The next prime is 84458761. The reversal of 84458749 is 94785448.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66667225 + 17791524 = 8165^2 + 4218^2 .

It is a cyclic number.

It is not a de Polignac number, because 84458749 - 2¹⁵ = 84425981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84458779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42229374 + 42229375.

It is an arithmetic number, because the mean of its divisors is an integer number (42229375).

Almost surely, 2^84458749 is an apocalyptic number.

It is an amenable number.

84458749 is a deficient number, since it is larger than the sum of its proper divisors (1).

84458749 is an equidigital number, since it uses as much as digits as its factorization.

84458749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1290240, while the sum is 49.

The square root of 84458749 is about 9190.1441229178. The cubic root of 84458749 is about 438.7477289298.

The spelling of 84458749 in words is "eighty-four million, four hundred fifty-eight thousand, seven hundred forty-nine".