84961519 has 8 divisors (see below), whose sum is σ = 85613360. Its totient is φ = 84312576.

The previous prime is 84961501. The next prime is 84961537. The reversal of 84961519 is 91516948.

It is an interprime number because it is at equal distance from previous prime (84961501) and next prime (84961537).

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 84961519 - 2⁷ = 84961391 is a prime.

It is a super-2 number, since 2×84961519² = 14436919421574722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84961579) 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 in 7 ways as a sum of consecutive naturals, for example, 131812 + ... + 132454.

It is an arithmetic number, because the mean of its divisors is an integer number (10701670).

Almost surely, 2^84961519 is an apocalyptic number.

84961519 is a deficient number, since it is larger than the sum of its proper divisors (651841).

84961519 is a wasteful number, since it uses less digits than its factorization.

84961519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1449.

The product of its digits is 77760, while the sum is 43.

The square root of 84961519 is about 9217.4572958056. The cubic root of 84961519 is about 439.6166064545.

The spelling of 84961519 in words is "eighty-four million, nine hundred sixty-one thousand, five hundred nineteen".