84694949 has 2 divisors, whose sum is σ = 84694950. Its totient is φ = 84694948.

The previous prime is 84694933. The next prime is 84694957. The reversal of 84694949 is 94949648.

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., 80102500 + 4592449 = 8950^2 + 2143^2 .

It is a cyclic number.

It is not a de Polignac number, because 84694949 - 2⁴ = 84694933 is a prime.

It is a super-2 number, since 2×84694949² = 14346468772225202, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 84694949.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84694979) 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, 42347474 + 42347475.

It is an arithmetic number, because the mean of its divisors is an integer number (42347475).

Almost surely, 2^84694949 is an apocalyptic number.

It is an amenable number.

84694949 is a deficient number, since it is larger than the sum of its proper divisors (1).

84694949 is an equidigital number, since it uses as much as digits as its factorization.

84694949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2239488, while the sum is 53.

The square root of 84694949 is about 9202.9858741606. The cubic root of 84694949 is about 439.1563534855.

The spelling of 84694949 in words is "eighty-four million, six hundred ninety-four thousand, nine hundred forty-nine".