84250451 has 2 divisors, whose sum is σ = 84250452. Its totient is φ = 84250450.

The previous prime is 84250429. The next prime is 84250457. The reversal of 84250451 is 15405248.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84250451 - 2²² = 80056147 is a prime.

It is not a weakly prime, because it can be changed into another prime (84250457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42125225 + 42125226.

It is an arithmetic number, because the mean of its divisors is an integer number (42125226).

Almost surely, 2^84250451 is an apocalyptic number.

84250451 is a deficient number, since it is larger than the sum of its proper divisors (1).

84250451 is an equidigital number, since it uses as much as digits as its factorization.

84250451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6400, while the sum is 29.

The square root of 84250451 is about 9178.8044428455. The cubic root of 84250451 is about 438.3867420195.

Adding to 84250451 its reverse (15405248), we get a palindrome (99655699).

The spelling of 84250451 in words is "eighty-four million, two hundred fifty thousand, four hundred fifty-one".