83401660 has 24 divisors (see below), whose sum is σ = 185446800. Its totient is φ = 31398144.

The previous prime is 83401631. The next prime is 83401673. The reversal of 83401660 is 6610438.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122310 + ... + 122989.

It is an arithmetic number, because the mean of its divisors is an integer number (7726950).

Almost surely, 2^83401660 is an apocalyptic number.

It is an amenable number.

83401660 is an abundant number, since it is smaller than the sum of its proper divisors (102045140).

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

83401660 is a wasteful number, since it uses less digits than its factorization.

83401660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245325 (or 245323 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 83401660 is about 9132.4509306100. The cubic root of 83401660 is about 436.9095774387.

It can be divided in two parts, 8340 and 1660, that added together give a 4-th power (10000 = 10⁴).

The spelling of 83401660 in words is "eighty-three million, four hundred one thousand, six hundred sixty".