84725417 has 4 divisors (see below), whose sum is σ = 96829056. Its totient is φ = 72621780.

The previous prime is 84725413. The next prime is 84725461. The reversal of 84725417 is 71452748.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 84725417 - 2² = 84725413 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84725411) 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 3 ways as a sum of consecutive naturals, for example, 6051809 + ... + 6051822.

It is an arithmetic number, because the mean of its divisors is an integer number (24207264).

Almost surely, 2^84725417 is an apocalyptic number.

It is an amenable number.

84725417 is a deficient number, since it is larger than the sum of its proper divisors (12103639).

84725417 is a wasteful number, since it uses less digits than its factorization.

84725417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12103638.

The product of its digits is 62720, while the sum is 38.

The square root of 84725417 is about 9204.6410576404. The cubic root of 84725417 is about 439.2090075961.

The spelling of 84725417 in words is "eighty-four million, seven hundred twenty-five thousand, four hundred seventeen".