83261604 has 12 divisors (see below), whose sum is σ = 194277104. Its totient is φ = 27753864.

The previous prime is 83261603. The next prime is 83261617. The reversal of 83261604 is 40616238.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (83261603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3469222 + ... + 3469245.

Almost surely, 2^83261604 is an apocalyptic number.

It is an amenable number.

83261604 is an abundant number, since it is smaller than the sum of its proper divisors (111015500).

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

83261604 is a wasteful number, since it uses less digits than its factorization.

83261604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6938474 (or 6938472 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 83261604 is about 9124.7796685728. The cubic root of 83261604 is about 436.6648737050.

The spelling of 83261604 in words is "eighty-three million, two hundred sixty-one thousand, six hundred four".