84751249 has 8 divisors (see below), whose sum is σ = 92558880. Its totient is φ = 76960800.

The previous prime is 84751231. The next prime is 84751313. The reversal of 84751249 is 94215748.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 84751249 - 2¹⁷ = 84620177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84751049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7429 + ... + 14989.

It is an arithmetic number, because the mean of its divisors is an integer number (11569860).

Almost surely, 2^84751249 is an apocalyptic number.

It is an amenable number.

84751249 is a deficient number, since it is larger than the sum of its proper divisors (7807631).

84751249 is a wasteful number, since it uses less digits than its factorization.

84751249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8591.

The product of its digits is 80640, while the sum is 40.

The square root of 84751249 is about 9206.0441558793. The cubic root of 84751249 is about 439.2536399887.

It can be divided in two parts, 847 and 51249, that multiplied together give a triangular number (43407903 = T₉₃₁₇).

The spelling of 84751249 in words is "eighty-four million, seven hundred fifty-one thousand, two hundred forty-nine".