83409690 has 64 divisors (see below), whose sum is σ = 246387456. Its totient is φ = 17597952.

The previous prime is 83409679. The next prime is 83409719. The reversal of 83409690 is 9690438.

It is a super-2 number, since 2×83409690² = 13914352771792200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12547 + ... + 18006.

It is an arithmetic number, because the mean of its divisors is an integer number (3849804).

Almost surely, 2^83409690 is an apocalyptic number.

83409690 is an abundant number, since it is smaller than the sum of its proper divisors (162977766).

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

83409690 is a wasteful number, since it uses less digits than its factorization.

83409690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30583.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 83409690 is about 9132.8905610436. The cubic root of 83409690 is about 436.9235990274.

The spelling of 83409690 in words is "eighty-three million, four hundred nine thousand, six hundred ninety".