84725905 has 16 divisors (see below), whose sum is σ = 115737984. Its totient is φ = 58938880.

The previous prime is 84725887. The next prime is 84725923. The reversal of 84725905 is 50952748.

It is an interprime number because it is at equal distance from previous prime (84725887) and next prime (84725923).

It is not a de Polignac number, because 84725905 - 2⁷ = 84725777 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32224 + ... + 34753.

It is an arithmetic number, because the mean of its divisors is an integer number (7233624).

Almost surely, 2^84725905 is an apocalyptic number.

It is an amenable number.

84725905 is a deficient number, since it is larger than the sum of its proper divisors (31012079).

84725905 is a wasteful number, since it uses less digits than its factorization.

84725905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67016.

The product of its (nonzero) digits is 100800, while the sum is 40.

The square root of 84725905 is about 9204.6675659689. The cubic root of 84725905 is about 439.2098508440.

The spelling of 84725905 in words is "eighty-four million, seven hundred twenty-five thousand, nine hundred five".