84399250 has 32 divisors (see below), whose sum is σ = 170155440. Its totient is φ = 31161600.

The previous prime is 84399241. The next prime is 84399269. The reversal of 84399250 is 5299348.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 3345241 + 81054009 = 1829^2 + 9003^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9735 + ... + 16234.

Almost surely, 2^84399250 is an apocalyptic number.

84399250 is an abundant number, since it is smaller than the sum of its proper divisors (85756190).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84399250 is a wasteful number, since it uses less digits than its factorization.

84399250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25999 (or 25989 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 84399250 is about 9186.9064434117. The cubic root of 84399250 is about 438.6446759249.

It can be divided in two parts, 8439 and 9250, that added together give a square (17689 = 133²).

The spelling of 84399250 in words is "eighty-four million, three hundred ninety-nine thousand, two hundred fifty".