84645746 has 4 divisors (see below), whose sum is σ = 126968622. Its totient is φ = 42322872.

The previous prime is 84645739. The next prime is 84645767. The reversal of 84645746 is 64754648.

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

It can be written as a sum of positive squares in only one way, i.e., 82101721 + 2544025 = 9061^2 + 1595^2 .

It is a junction number, because it is equal to n+sod(n) for n = 84645697 and 84645706.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21161435 + ... + 21161438.

Almost surely, 2^84645746 is an apocalyptic number.

84645746 is a deficient number, since it is larger than the sum of its proper divisors (42322876).

84645746 is a wasteful number, since it uses less digits than its factorization.

84645746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42322875.

The product of its digits is 645120, while the sum is 44.

The square root of 84645746 is about 9200.3122773089. The cubic root of 84645746 is about 439.0712953013.

The spelling of 84645746 in words is "eighty-four million, six hundred forty-five thousand, seven hundred forty-six".