84749515 has 8 divisors (see below), whose sum is σ = 101872800. Its totient is φ = 67684032.

The previous prime is 84749479. The next prime is 84749521. The reversal of 84749515 is 51594748.

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 84749515 - 2⁹ = 84749003 is a prime.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 11154 + ... + 17143.

It is an arithmetic number, because the mean of its divisors is an integer number (12734100).

Almost surely, 2^84749515 is an apocalyptic number.

84749515 is a deficient number, since it is larger than the sum of its proper divisors (17123285).

84749515 is a wasteful number, since it uses less digits than its factorization.

84749515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28901.

The product of its digits is 201600, while the sum is 43.

The square root of 84749515 is about 9205.9499781391. The cubic root of 84749515 is about 439.2506442767.

It can be divided in two parts, 84749 and 515, that added together give a square (85264 = 292²).

The spelling of 84749515 in words is "eighty-four million, seven hundred forty-nine thousand, five hundred fifteen".