83320450 has 12 divisors (see below), whose sum is σ = 154976130. Its totient is φ = 33328160.

The previous prime is 83320439. The next prime is 83320459. The reversal of 83320450 is 5402338.

It can be written as a sum of positive squares in 3 ways, for example, as 37933281 + 45387169 = 6159^2 + 6737^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (83320459) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 833155 + ... + 833254.

Almost surely, 2^83320450 is an apocalyptic number.

83320450 is a deficient number, since it is larger than the sum of its proper divisors (71655680).

83320450 is a wasteful number, since it uses less digits than its factorization.

83320450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1666421 (or 1666416 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 83320450 is about 9128.0036152491. The cubic root of 83320450 is about 436.7677219514.

Adding to 83320450 its reverse (5402338), we get a palindrome (88722788).

The spelling of 83320450 in words is "eighty-three million, three hundred twenty thousand, four hundred fifty".