84534731 has 4 divisors (see below), whose sum is σ = 84600912. Its totient is φ = 84468552.

The previous prime is 84534713. The next prime is 84534733. The reversal of 84534731 is 13743548.

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

It is a cyclic number.

It is not a de Polignac number, because 84534731 - 2²² = 80340427 is a prime.

It is a super-2 number, since 2×84534731² = 14292241490484722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84534691 and 84534700.

It is not an unprimeable number, because it can be changed into a prime (84534733) 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, 31136 + ... + 33741.

It is an arithmetic number, because the mean of its divisors is an integer number (21150228).

Almost surely, 2^84534731 is an apocalyptic number.

84534731 is a deficient number, since it is larger than the sum of its proper divisors (66181).

84534731 is a wasteful number, since it uses less digits than its factorization.

84534731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66180.

The product of its digits is 40320, while the sum is 35.

The square root of 84534731 is about 9194.2770787050. The cubic root of 84534731 is about 438.8792603512.

The spelling of 84534731 in words is "eighty-four million, five hundred thirty-four thousand, seven hundred thirty-one".