83015690 has 32 divisors (see below), whose sum is σ = 155267280. Its totient is φ = 31919104.

The previous prime is 83015689. The next prime is 83015707. The reversal of 83015690 is 9651038.

It can be written as a sum of positive squares in 8 ways, for example, as 75568249 + 7447441 = 8693^2 + 2729^2 .

It is a super-3 number, since 3×83015690³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 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, 84482 + ... + 85458.

Almost surely, 2^83015690 is an apocalyptic number.

83015690 is a deficient number, since it is larger than the sum of its proper divisors (72251590).

83015690 is a wasteful number, since it uses less digits than its factorization.

83015690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1306.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 83015690 is about 9111.2946390730. The cubic root of 83015690 is about 436.2345517144.

The spelling of 83015690 in words is "eighty-three million, fifteen thousand, six hundred ninety".