84701945 has 4 divisors (see below), whose sum is σ = 101642340. Its totient is φ = 67761552.

The previous prime is 84701927. The next prime is 84701957. The reversal of 84701945 is 54910748.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39287824 + 45414121 = 6268^2 + 6739^2 .

It is a cyclic number.

It is not a de Polignac number, because 84701945 - 2⁸ = 84701689 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 84701899 and 84701908.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8470190 + ... + 8470199.

It is an arithmetic number, because the mean of its divisors is an integer number (25410585).

Almost surely, 2^84701945 is an apocalyptic number.

It is an amenable number.

84701945 is a deficient number, since it is larger than the sum of its proper divisors (16940395).

84701945 is a wasteful number, since it uses less digits than its factorization.

84701945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16940394.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 84701945 is about 9203.3659603430. The cubic root of 84701945 is about 439.1684449317.

The spelling of 84701945 in words is "eighty-four million, seven hundred one thousand, nine hundred forty-five".