84798745 has 4 divisors (see below), whose sum is σ = 101758500. Its totient is φ = 67838992.

The previous prime is 84798743. The next prime is 84798761. The reversal of 84798745 is 54789748.

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 58049161 + 26749584 = 7619^2 + 5172^2 .

It is a cyclic number.

It is not a de Polignac number, because 84798745 - 2¹ = 84798743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 84798692 and 84798701.

It is not an unprimeable number, because it can be changed into a prime (84798743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8479870 + ... + 8479879.

It is an arithmetic number, because the mean of its divisors is an integer number (25439625).

Almost surely, 2^84798745 is an apocalyptic number.

It is an amenable number.

84798745 is a deficient number, since it is larger than the sum of its proper divisors (16959755).

84798745 is a wasteful number, since it uses less digits than its factorization.

84798745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16959754.

The product of its digits is 2257920, while the sum is 52.

The square root of 84798745 is about 9208.6234041794. The cubic root of 84798745 is about 439.3356796639.

The spelling of 84798745 in words is "eighty-four million, seven hundred ninety-eight thousand, seven hundred forty-five".