84166749 has 32 divisors (see below), whose sum is σ = 129066240. Its totient is φ = 54167616.

The previous prime is 84166723. The next prime is 84166757. The reversal of 84166749 is 94766148.

It is not a de Polignac number, because 84166749 - 2⁸ = 84166493 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84166769) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 172584 + ... + 173070.

It is an arithmetic number, because the mean of its divisors is an integer number (4033320).

Almost surely, 2^84166749 is an apocalyptic number.

It is an amenable number.

84166749 is a deficient number, since it is larger than the sum of its proper divisors (44899491).

84166749 is a wasteful number, since it uses less digits than its factorization.

84166749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706 (or 700 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 84166749 is about 9174.2437835497. The cubic root of 84166749 is about 438.2415162670.

The spelling of 84166749 in words is "eighty-four million, one hundred sixty-six thousand, seven hundred forty-nine".