84312308 has 6 divisors (see below), whose sum is σ = 147546546. Its totient is φ = 42156152.

The previous prime is 84312301. The next prime is 84312311. The reversal of 84312308 is 80321348.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 63170704 + 21141604 = 7948^2 + 4598^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84312301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10539035 + ... + 10539042.

It is an arithmetic number, because the mean of its divisors is an integer number (24591091).

Almost surely, 2^84312308 is an apocalyptic number.

It is an amenable number.

84312308 is a deficient number, since it is larger than the sum of its proper divisors (63234238).

84312308 is a wasteful number, since it uses less digits than its factorization.

84312308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21078081 (or 21078079 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 84312308 is about 9182.1733810683. The cubic root of 84312308 is about 438.4940041748.

The spelling of 84312308 in words is "eighty-four million, three hundred twelve thousand, three hundred eight".