84254831 has 4 divisors (see below), whose sum is σ = 87160200. Its totient is φ = 81349464.

The previous prime is 84254827. The next prime is 84254851. The reversal of 84254831 is 13845248.

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 84254831 - 2² = 84254827 is a prime.

It is a super-2 number, since 2×84254831² = 14197753093677122, 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 = 84254791 and 84254800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84254801) 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, 1452641 + ... + 1452698.

It is an arithmetic number, because the mean of its divisors is an integer number (21790050).

Almost surely, 2^84254831 is an apocalyptic number.

84254831 is a deficient number, since it is larger than the sum of its proper divisors (2905369).

84254831 is a wasteful number, since it uses less digits than its factorization.

84254831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2905368.

The product of its digits is 30720, while the sum is 35.

The square root of 84254831 is about 9179.0430329093. The cubic root of 84254831 is about 438.3943388163.

The spelling of 84254831 in words is "eighty-four million, two hundred fifty-four thousand, eight hundred thirty-one".